Search a number
-
+
157308 = 22313109
BaseRepresentation
bin100110011001111100
321222210020
4212121330
520013213
63212140
71223424
oct463174
9258706
10157308
11a8208
1277050
13567a8
1441484
1531923
hex2667c

157308 has 12 divisors (see below), whose sum is σ = 367080. Its totient is φ = 52432.

The previous prime is 157307. The next prime is 157321. The reversal of 157308 is 803751.

It is a tau number, because it is divible by the number of its divisors (12).

It is an Ulam number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6543 + ... + 6566.

It is an arithmetic number, because the mean of its divisors is an integer number (30590).

2157308 is an apocalyptic number.

It is an amenable number.

157308 is an abundant number, since it is smaller than the sum of its proper divisors (209772).

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

157308 is a wasteful number, since it uses less digits than its factorization.

157308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13116 (or 13114 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 157308 is about 396.6207256309. The cubic root of 157308 is about 53.9821614603.

It can be divided in two parts, 157 and 308, that added together give a triangular number (465 = T30).

The spelling of 157308 in words is "one hundred fifty-seven thousand, three hundred eight".

Divisors: 1 2 3 4 6 12 13109 26218 39327 52436 78654 157308