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157390094309 = 7211350235659
BaseRepresentation
bin1001001010010100101…
…1100011111111100101
3120001020210020012110012
42102211023203333211
510034313331004214
6200145355540005
714241162504500
oct2224513437745
9501223205405
10157390094309
1160826672408
122660575a605
1311ac3639026
147891054137
1541627a203e
hex24a52e3fe5

157390094309 has 24 divisors (see below), whose sum is σ = 184776088320. Its totient is φ = 133661695104.

The previous prime is 157390094273. The next prime is 157390094339. The reversal of 157390094309 is 903490093751.

It is a de Polignac number, because none of the positive numbers 2k-157390094309 is a prime.

It is a Duffinian number.

It is a congruent number.

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 in 23 ways as a sum of consecutive naturals, for example, 27809522 + ... + 27815180.

It is an arithmetic number, because the mean of its divisors is an integer number (7699003680).

Almost surely, 2157390094309 is an apocalyptic number.

It is an amenable number.

157390094309 is a deficient number, since it is larger than the sum of its proper divisors (27385994011).

157390094309 is a wasteful number, since it uses less digits than its factorization.

157390094309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10809 (or 10802 counting only the distinct ones).

The product of its (nonzero) digits is 918540, while the sum is 50.

The spelling of 157390094309 in words is "one hundred fifty-seven billion, three hundred ninety million, ninety-four thousand, three hundred nine".

Divisors: 1 7 49 113 791 5023 5537 5659 35161 39613 246127 277291 567599 639467 3973193 4476269 27812351 28425157 31333883 198976099 1392832693 3212042741 22484299187 157390094309