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248049408 = 2831989191
BaseRepresentation
bin11101100100011…
…10111100000000
3122021202012211010
432302032330000
51002000040113
640340320520
76101246055
oct1662167400
9567665733
10248049408
11118021212
126b0a3140
133c50b8c9
1424d2d02c
1516b9b1c3
hexec8ef00

248049408 has 144 divisors (see below), whose sum is σ = 706406400. Its totient is φ = 77045760.

The previous prime is 248049391. The next prime is 248049419. The reversal of 248049408 is 804940842.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1298593 + ... + 1298783.

It is an arithmetic number, because the mean of its divisors is an integer number (4905600).

Almost surely, 2248049408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 248049408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (353203200).

248049408 is an abundant number, since it is smaller than the sum of its proper divisors (458356992).

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

248049408 is a wasteful number, since it uses less digits than its factorization.

248049408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318 (or 304 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 248049408 is about 15749.5843754685. The cubic root of 248049408 is about 628.3178506474.

The spelling of 248049408 in words is "two hundred forty-eight million, forty-nine thousand, four hundred eight".

Divisors: 1 2 3 4 6 8 12 16 19 24 32 38 48 57 64 76 89 96 114 128 152 178 191 192 228 256 267 304 356 382 384 456 534 573 608 712 764 768 912 1068 1146 1216 1424 1528 1691 1824 2136 2292 2432 2848 3056 3382 3629 3648 4272 4584 4864 5073 5696 6112 6764 7258 7296 8544 9168 10146 10887 11392 12224 13528 14516 14592 16999 17088 18336 20292 21774 22784 24448 27056 29032 33998 34176 36672 40584 43548 48896 50997 54112 58064 67996 68352 73344 81168 87096 101994 108224 116128 135992 146688 162336 174192 203988 216448 232256 271984 322981 324672 348384 407976 432896 464512 543968 645962 649344 696768 815952 929024 968943 1087936 1291924 1298688 1393536 1631904 1937886 2175872 2583848 2787072 3263808 3875772 4351744 5167696 6527616 7751544 10335392 13055232 15503088 20670784 31006176 41341568 62012352 82683136 124024704 248049408