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157039 = 532963
BaseRepresentation
bin100110010101101111
321222102021
4212111233
520011124
63211011
71222561
oct462557
9258367
10157039
11a7a93
1276a67
135662c
1441331
15317e4
hex2656f

157039 has 4 divisors (see below), whose sum is σ = 160056. Its totient is φ = 154024.

The previous prime is 157037. The next prime is 157049. The reversal of 157039 is 930751.

157039 is nontrivially palindromic in base 12.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 930751 = 1098539.

It is a cyclic number.

It is not a de Polignac number, because 157039 - 21 = 157037 is a prime.

It is a super-2 number, since 2×1570392 = 49322495042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157037) by changing a digit.

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, 1429 + ... + 1534.

It is an arithmetic number, because the mean of its divisors is an integer number (40014).

2157039 is an apocalyptic number.

157039 is a deficient number, since it is larger than the sum of its proper divisors (3017).

157039 is an equidigital number, since it uses as much as digits as its factorization.

157039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3016.

The product of its (nonzero) digits is 945, while the sum is 25.

The square root of 157039 is about 396.2814656277. The cubic root of 157039 is about 53.9513736926.

The spelling of 157039 in words is "one hundred fifty-seven thousand, thirty-nine".

Divisors: 1 53 2963 157039