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157051040 = 255981569
BaseRepresentation
bin10010101110001…
…10100010100000
3101221112000112012
421113012202200
5310201113130
623330052052
73614624516
oct1127064240
9357460465
10157051040
1180718853
124471a028
13266ca413
1416c024b6
15dbc3995
hex95c68a0

157051040 has 24 divisors (see below), whose sum is σ = 371033460. Its totient is φ = 62820352.

The previous prime is 157051039. The next prime is 157051057. The reversal of 157051040 is 40150751.

It can be written as a sum of positive squares in 2 ways, for example, as 157051024 + 16 = 12532^2 + 4^2 .

It is a junction number, because it is equal to n+sod(n) for n = 157050997 and 157051015.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 490625 + ... + 490944.

Almost surely, 2157051040 is an apocalyptic number.

157051040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157051040 is an abundant number, since it is smaller than the sum of its proper divisors (213982420).

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

157051040 is an equidigital number, since it uses as much as digits as its factorization.

157051040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981584 (or 981576 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 157051040 is about 12532.0006383658. Note that the first 3 decimals coincide. The cubic root of 157051040 is about 539.5275245404.

The spelling of 157051040 in words is "one hundred fifty-seven million, fifty-one thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 981569 1963138 3926276 4907845 7852552 9815690 15705104 19631380 31410208 39262760 78525520 157051040