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248938480 = 24571779331
BaseRepresentation
bin11101101011001…
…11111111110000
3122100102101101201
432311213333300
51002212012410
640411340544
76111641110
oct1665477760
9570371351
10248938480
1111857918a
126b451754
133c76049b
14250c1040
1516cc483a
hexed67ff0

248938480 has 160 divisors (see below), whose sum is σ = 711383040. Its totient is φ = 79073280.

The previous prime is 248938441. The next prime is 248938507. The reversal of 248938480 is 84839842.

It is a self number, because there is not a number n which added to its sum of digits gives 248938480.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 751915 + ... + 752245.

It is an arithmetic number, because the mean of its divisors is an integer number (4446144).

Almost surely, 2248938480 is an apocalyptic number.

248938480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 248938480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (355691520).

248938480 is an abundant number, since it is smaller than the sum of its proper divisors (462444560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

248938480 is a wasteful number, since it uses less digits than its factorization.

248938480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447 (or 441 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 46.

The square root of 248938480 is about 15777.7843818453. The cubic root of 248938480 is about 629.0676390689.

The spelling of 248938480 in words is "two hundred forty-eight million, nine hundred thirty-eight thousand, four hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 16 17 20 28 34 35 40 56 68 70 79 80 85 112 119 136 140 158 170 238 272 280 316 331 340 395 476 553 560 595 632 662 680 790 952 1106 1190 1264 1324 1343 1360 1580 1655 1904 2212 2317 2380 2648 2686 2765 3160 3310 4424 4634 4760 5296 5372 5530 5627 6320 6620 6715 8848 9268 9401 9520 10744 11060 11254 11585 13240 13430 18536 18802 21488 22120 22508 23170 26149 26480 26860 28135 37072 37604 39389 44240 45016 46340 47005 52298 53720 56270 75208 78778 90032 92680 94010 104596 107440 112540 130745 150416 157556 183043 185360 188020 196945 209192 225080 261490 315112 366086 376040 393890 418384 444533 450160 522980 630224 732172 752080 787780 889066 915215 1045960 1464344 1575560 1778132 1830430 2091920 2222665 2928688 3111731 3151120 3556264 3660860 4445330 6223462 7112528 7321720 8890660 12446924 14643440 15558655 17781320 24893848 31117310 35562640 49787696 62234620 124469240 248938480