Search a number
-
+
157390094338 = 278695047169
BaseRepresentation
bin1001001010010100101…
…1100100000000000010
3120001020210020012111021
42102211023210000002
510034313331004323
6200145355540054
714241162504541
oct2224513440002
9501223205437
10157390094338
1160826672434
122660575a62a
1311ac3639049
147891054158
1541627a205d
hex24a52e4002

157390094338 has 4 divisors (see below), whose sum is σ = 236085141510. Its totient is φ = 78695047168.

The previous prime is 157390094273. The next prime is 157390094339. The reversal of 157390094338 is 833490093751.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 81331624969 + 76058469369 = 285187^2 + 275787^2 .

It is not an unprimeable number, because it can be changed into a prime (157390094339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39347523583 + ... + 39347523586.

Almost surely, 2157390094338 is an apocalyptic number.

157390094338 is a deficient number, since it is larger than the sum of its proper divisors (78695047172).

157390094338 is an equidigital number, since it uses as much as digits as its factorization.

157390094338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78695047171.

The product of its (nonzero) digits is 2449440, while the sum is 52.

The spelling of 157390094338 in words is "one hundred fifty-seven billion, three hundred ninety million, ninety-four thousand, three hundred thirty-eight".

Divisors: 1 2 78695047169 157390094338