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157298961970 = 2557559273283
BaseRepresentation
bin1001001001111110111…
…1111010111000110010
3120001000102202012101101
42102133233322320302
510034122013240340
6200132342355014
714236005054523
oct2223757727062
9501012665341
10157298961970
116078a188327
122659b12ba6a
1311aaa7ab877
147882cd084a
15415979ec9a
hex249fbfae32

157298961970 has 16 divisors (see below), whose sum is σ = 283144086720. Its totient is φ = 62918261424.

The previous prime is 157298961961. The next prime is 157298961977. The reversal of 157298961970 is 79169892751.

It is not an unprimeable number, because it can be changed into a prime (157298961977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438949 + ... + 712231.

It is an arithmetic number, because the mean of its divisors is an integer number (17696505420).

Almost surely, 2157298961970 is an apocalyptic number.

157298961970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157298961970 is a deficient number, since it is larger than the sum of its proper divisors (125845124750).

157298961970 is a wasteful number, since it uses less digits than its factorization.

157298961970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330849.

The product of its (nonzero) digits is 17146080, while the sum is 64.

The spelling of 157298961970 in words is "one hundred fifty-seven billion, two hundred ninety-eight million, nine hundred sixty-one thousand, nine hundred seventy".

Divisors: 1 2 5 10 57559 115118 273283 287795 546566 575590 1366415 2732830 15729896197 31459792394 78649480985 157298961970