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157124 = 22113571
BaseRepresentation
bin100110010111000100
321222112102
4212113010
520011444
63211232
71223042
oct462704
9258472
10157124
11a8060
1276b18
1356696
1441392
153184e
hex265c4

157124 has 12 divisors (see below), whose sum is σ = 300048. Its totient is φ = 71400.

The previous prime is 157109. The next prime is 157127. The reversal of 157124 is 421751.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 157096 and 157105.

It is not an unprimeable number, because it can be changed into a prime (157127) by changing a digit.

157124 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1742 + ... + 1829.

It is an arithmetic number, because the mean of its divisors is an integer number (25004).

2157124 is an apocalyptic number.

It is an amenable number.

157124 is a deficient number, since it is larger than the sum of its proper divisors (142924).

157124 is a wasteful number, since it uses less digits than its factorization.

157124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3586 (or 3584 counting only the distinct ones).

The product of its digits is 280, while the sum is 20.

The square root of 157124 is about 396.3886981234. The cubic root of 157124 is about 53.9611059664.

Adding to 157124 its reverse (421751), we get a palindrome (578875).

The spelling of 157124 in words is "one hundred fifty-seven thousand, one hundred twenty-four".

Divisors: 1 2 4 11 22 44 3571 7142 14284 39281 78562 157124