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157448040 = 23358571531
BaseRepresentation
bin10010110001001…
…11011101101000
3101222021012002220
421120213131220
5310301314130
623342354040
73621200121
oct1130473550
9358235086
10157448040
118096a052
124488b920
1326809029
1416ca7048
15dc51410
hex9627768

157448040 has 64 divisors (see below), whose sum is σ = 473204160. Its totient is φ = 41909760.

The previous prime is 157447981. The next prime is 157448051. The reversal of 157448040 is 40844751.

157448040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 157447992 and 157448010.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102075 + ... + 103605.

It is an arithmetic number, because the mean of its divisors is an integer number (7393815).

Almost surely, 2157448040 is an apocalyptic number.

157448040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157448040 is an abundant number, since it is smaller than the sum of its proper divisors (315756120).

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

157448040 is a wasteful number, since it uses less digits than its factorization.

157448040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2402 (or 2398 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 157448040 is about 12547.8300912947. The cubic root of 157448040 is about 539.9817552135.

The spelling of 157448040 in words is "one hundred fifty-seven million, four hundred forty-eight thousand, forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 857 1531 1714 2571 3062 3428 4285 4593 5142 6124 6856 7655 8570 9186 10284 12248 12855 15310 17140 18372 20568 22965 25710 30620 34280 36744 45930 51420 61240 91860 102840 183720 1312067 2624134 3936201 5248268 6560335 7872402 10496536 13120670 15744804 19681005 26241340 31489608 39362010 52482680 78724020 157448040