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157162642 = 27131947967
BaseRepresentation
bin10010101111000…
…01110010010010
3101221201200121121
421113201302102
5310213201032
623332312454
73615601060
oct1127416222
9357650547
10157162642
118079468a
124477272a
1326739160
1416c31030
15dbe6a97
hex95e1c92

157162642 has 64 divisors (see below), whose sum is σ = 312238080. Its totient is φ = 57589056.

The previous prime is 157162639. The next prime is 157162651. The reversal of 157162642 is 246261751.

It is a junction number, because it is equal to n+sod(n) for n = 157162598 and 157162607.

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 31 ways as a sum of consecutive naturals, for example, 162043 + ... + 163009.

It is an arithmetic number, because the mean of its divisors is an integer number (4878720).

Almost surely, 2157162642 is an apocalyptic number.

157162642 is a deficient number, since it is larger than the sum of its proper divisors (155075438).

157162642 is a wasteful number, since it uses less digits than its factorization.

157162642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055.

The product of its digits is 20160, while the sum is 34.

The square root of 157162642 is about 12536.4525285266. The cubic root of 157162642 is about 539.6552921203.

The spelling of 157162642 in words is "one hundred fifty-seven million, one hundred sixty-two thousand, six hundred forty-two".

Divisors: 1 2 7 13 14 19 26 38 47 91 94 133 182 247 266 329 494 611 658 893 967 1222 1729 1786 1934 3458 4277 6251 6769 8554 11609 12502 12571 13538 18373 23218 25142 36746 45449 81263 87997 90898 128611 162526 175994 238849 257222 318143 477698 590837 636286 863531 1181674 1671943 1727062 3343886 4135859 6044717 8271718 11225903 12089434 22451806 78581321 157162642