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161482968 = 233231711019
BaseRepresentation
bin10011010000000…
…00100011011000
3102020212011222200
421220000203120
5312314423333
624005050200
74000403553
oct1150004330
9366764880
10161482968
11831755a9
12460b6960
13275bc76a
141763769a
15e29bc13
hex9a008d8

161482968 has 96 divisors (see below), whose sum is σ = 458265600. Its totient is φ = 51307200.

The previous prime is 161482943. The next prime is 161482987. The reversal of 161482968 is 869284161.

161482968 is a `hidden beast` number, since 1 + 614 + 8 + 29 + 6 + 8 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 157963 + ... + 158981.

It is an arithmetic number, because the mean of its divisors is an integer number (4773600).

Almost surely, 2161482968 is an apocalyptic number.

161482968 is a gapful number since it is divisible by the number (18) 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 161482968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229132800).

161482968 is an abundant number, since it is smaller than the sum of its proper divisors (296782632).

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

161482968 is a wasteful number, since it uses less digits than its factorization.

161482968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133 (or 1126 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 161482968 is about 12707.5948943929. The cubic root of 161482968 is about 544.5556156464. Note that the first 3 decimals are identical.

The spelling of 161482968 in words is "one hundred sixty-one million, four hundred eighty-two thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 31 36 62 71 72 93 124 142 186 213 248 279 284 372 426 558 568 639 744 852 1019 1116 1278 1704 2038 2201 2232 2556 3057 4076 4402 5112 6114 6603 8152 8804 9171 12228 13206 17608 18342 19809 24456 26412 31589 36684 39618 52824 63178 72349 73368 79236 94767 126356 144698 158472 189534 217047 252712 284301 289396 379068 434094 568602 578792 651141 758136 868188 1137204 1302282 1736376 2242819 2274408 2604564 4485638 5209128 6728457 8971276 13456914 17942552 20185371 26913828 40370742 53827656 80741484 161482968