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157000630121 = 1912016880259
BaseRepresentation
bin1001001000110111110…
…1110111111101101001
3120000020122101101000122
42102031331313331221
510033014130130441
6200043004213025
714225423223416
oct2221575677551
9500218341018
10157000630121
1160646843185
122651723a175
1311a60a4614a
14785543310d
15413d4c034b
hex248df77f69

157000630121 has 8 divisors (see below), whose sum is σ = 165401450400. Its totient is φ = 148613572800.

The previous prime is 157000630093. The next prime is 157000630123. The reversal of 157000630121 is 121036000751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157000630121 - 26 = 157000630057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157000630123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3417311 + ... + 3462948.

It is an arithmetic number, because the mean of its divisors is an integer number (20675181300).

Almost surely, 2157000630121 is an apocalyptic number.

It is an amenable number.

157000630121 is a deficient number, since it is larger than the sum of its proper divisors (8400820279).

157000630121 is a wasteful number, since it uses less digits than its factorization.

157000630121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6881479.

The product of its (nonzero) digits is 1260, while the sum is 26.

Adding to 157000630121 its reverse (121036000751), we get a palindrome (278036630872).

It can be divided in two parts, 157000630 and 121, that added together give a palindrome (157000751).

The spelling of 157000630121 in words is "one hundred fifty-seven billion, six hundred thirty thousand, one hundred twenty-one".

Divisors: 1 19 1201 22819 6880259 130724921 8263191059 157000630121