Search a number
-
+
157377890 = 2571221659
BaseRepresentation
bin10010110000101…
…10010101100010
3101222010121212202
421120112111202
5310242043030
623341053202
73620455445
oct1130262542
9358117782
10157377890
118092137a
1244857202
13267b3117
1416c8965c
15dc3a745
hex9616562

157377890 has 16 divisors (see below), whose sum is σ = 287271360. Its totient is φ = 62064240.

The previous prime is 157377889. The next prime is 157377907. The reversal of 157377890 is 98773751.

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, 110120 + ... + 111539.

It is an arithmetic number, because the mean of its divisors is an integer number (17954460).

Almost surely, 2157377890 is an apocalyptic number.

157377890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157377890 is a deficient number, since it is larger than the sum of its proper divisors (129893470).

157377890 is a wasteful number, since it uses less digits than its factorization.

157377890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221737.

The product of its (nonzero) digits is 370440, while the sum is 47.

The square root of 157377890 is about 12545.0344758394. The cubic root of 157377890 is about 539.9015481238.

The spelling of 157377890 in words is "one hundred fifty-seven million, three hundred seventy-seven thousand, eight hundred ninety".

Divisors: 1 2 5 10 71 142 355 710 221659 443318 1108295 2216590 15737789 31475578 78688945 157377890