Search a number
-
+
157745660 = 22523333851
BaseRepresentation
bin10010110011100…
…00000111111100
3101222211022100212
421121300013330
5310340330120
623353011552
73623546612
oct1131600774
9358738325
10157745660
1181052716
12449b3bb8
13268b1637
1416d436b2
15dcae6c5
hex96701fc

157745660 has 24 divisors (see below), whose sum is σ = 332697456. Its totient is φ = 62825600.

The previous prime is 157745617. The next prime is 157745729. The reversal of 157745660 is 66547751.

157745660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12266 + ... + 21585.

It is an arithmetic number, because the mean of its divisors is an integer number (13862394).

Almost surely, 2157745660 is an apocalyptic number.

157745660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157745660 is an abundant number, since it is smaller than the sum of its proper divisors (174951796).

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

157745660 is a wasteful number, since it uses less digits than its factorization.

157745660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34093 (or 34091 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 41.

The square root of 157745660 is about 12559.6839132201. The cubic root of 157745660 is about 540.3217789542.

The spelling of 157745660 in words is "one hundred fifty-seven million, seven hundred forty-five thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 233 466 932 1165 2330 4660 33851 67702 135404 169255 338510 677020 7887283 15774566 31549132 39436415 78872830 157745660