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245896980 = 22357797411
BaseRepresentation
bin11101010100000…
…01011100010100
3122010200212020120
432222001130110
51000422200410
640222231540
76044042550
oct1652013424
9563625216
10245896980
1111689104a
126a4255b0
133bc36c94
142492c860
15168c3570
hexea81714

245896980 has 96 divisors (see below), whose sum is σ = 796938240. Its totient is φ = 55486080.

The previous prime is 245896961. The next prime is 245897009. The reversal of 245896980 is 89698542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29475 + ... + 36885.

It is an arithmetic number, because the mean of its divisors is an integer number (8301440).

Almost surely, 2245896980 is an apocalyptic number.

245896980 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 245896980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (398469120).

245896980 is an abundant number, since it is smaller than the sum of its proper divisors (551041260).

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

245896980 is a wasteful number, since it uses less digits than its factorization.

245896980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7509 (or 7507 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 51.

The square root of 245896980 is about 15681.1026398018. The cubic root of 245896980 is about 626.4951765298.

The spelling of 245896980 in words is "two hundred forty-five million, eight hundred ninety-six thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 79 84 105 140 158 210 237 316 395 420 474 553 790 948 1106 1185 1580 1659 2212 2370 2765 3318 4740 5530 6636 7411 8295 11060 14822 16590 22233 29644 33180 37055 44466 51877 74110 88932 103754 111165 148220 155631 207508 222330 259385 311262 444660 518770 585469 622524 778155 1037540 1170938 1556310 1756407 2341876 2927345 3112620 3512814 4098283 5854690 7025628 8196566 8782035 11709380 12294849 16393132 17564070 20491415 24589698 35128140 40982830 49179396 61474245 81965660 122948490 245896980