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157030269 = 311192310889
BaseRepresentation
bin10010101110000…
…01011101111101
3101221110222000220
421113001131331
5310144432034
623325411553
73614510124
oct1127013575
9357428026
10157030269
1180704190
1244709bb9
13266c0b26
1416bd8abb
15dbbc749
hex95c177d

157030269 has 32 divisors (see below), whose sum is σ = 250905600. Its totient is φ = 86232960.

The previous prime is 157030261. The next prime is 157030277. The reversal of 157030269 is 962030751.

It is an interprime number because it is at equal distance from previous prime (157030261) and next prime (157030277).

It is not a de Polignac number, because 157030269 - 23 = 157030261 is a prime.

It is a super-2 number, since 2×1570302692 = 49317010764424722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157030261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8977 + ... + 19865.

It is an arithmetic number, because the mean of its divisors is an integer number (7840800).

Almost surely, 2157030269 is an apocalyptic number.

157030269 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

157030269 is a deficient number, since it is larger than the sum of its proper divisors (93875331).

157030269 is a wasteful number, since it uses less digits than its factorization.

157030269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10945.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 157030269 is about 12531.1718925247. The cubic root of 157030269 is about 539.5037381749.

The spelling of 157030269 in words is "one hundred fifty-seven million, thirty thousand, two hundred sixty-nine".

Divisors: 1 3 11 19 23 33 57 69 209 253 437 627 759 1311 4807 10889 14421 32667 119779 206891 250447 359337 620673 751341 2275801 2754917 4758493 6827403 8264751 14275479 52343423 157030269