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157440830099 = 7891409179357
BaseRepresentation
bin1001001010100000110…
…1000110101010010011
3120001101022200211212112
42102220031012222103
510034414323030344
6200154411215535
714242346655320
oct2225015065223
9501338624775
10157440830099
1160852275a13
122661a7475ab
1311b00cc12c7
147897a9db47
154166e74c9e
hex24a8346a93

157440830099 has 16 divisors (see below), whose sum is σ = 182084241600. Its totient is φ = 133337554944.

The previous prime is 157440830087. The next prime is 157440830119. The reversal of 157440830099 is 990038044751.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-157440830099 is a prime.

It is a super-2 number, since 2×1574408300992 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157440832099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 788129 + ... + 967485.

It is an arithmetic number, because the mean of its divisors is an integer number (11380265100).

Almost surely, 2157440830099 is an apocalyptic number.

157440830099 is a deficient number, since it is larger than the sum of its proper divisors (24643411501).

157440830099 is a wasteful number, since it uses less digits than its factorization.

157440830099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180862.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 157440830099 in words is "one hundred fifty-seven billion, four hundred forty million, eight hundred thirty thousand, ninety-nine".

Divisors: 1 7 89 623 1409 9863 125401 179357 877807 1255499 15962773 111739411 252714013 1768998091 22491547157 157440830099