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157053540 = 22357373937
BaseRepresentation
bin10010101110001…
…11001001100100
3101221112010221210
421113013021210
5310201203130
623330111420
73614635020
oct1127071144
9357463853
10157053540
118071a716
124471b570
13266cb5b7
1416c03380
15dbc45b0
hex95c7264

157053540 has 48 divisors (see below), whose sum is σ = 502572672. Its totient is φ = 35897856.

The previous prime is 157053527. The next prime is 157053541. The reversal of 157053540 is 45350751.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 157053498 and 157053507.

It is not an unprimeable number, because it can be changed into a prime (157053541) by changing a digit.

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, 186549 + ... + 187388.

It is an arithmetic number, because the mean of its divisors is an integer number (10470264).

Almost surely, 2157053540 is an apocalyptic number.

157053540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157053540 is an abundant number, since it is smaller than the sum of its proper divisors (345519132).

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

157053540 is a wasteful number, since it uses less digits than its factorization.

157053540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373956 (or 373954 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 157053540 is about 12532.1003826174. The cubic root of 157053540 is about 539.5303873287.

The spelling of 157053540 in words is "one hundred fifty-seven million, fifty-three thousand, five hundred forty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 373937 747874 1121811 1495748 1869685 2243622 2617559 3739370 4487244 5235118 5609055 7478740 7852677 10470236 11218110 13087795 15705354 22436220 26175590 31410708 39263385 52351180 78526770 157053540