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13123157102 = 2115415711931
BaseRepresentation
bin11000011100011001…
…10111110001101110
31020212120112110020122
430032030313301232
5203334012011402
610010110444542
7643126665146
oct141614676156
936776473218
1013123157102
115624753190
122662b03752
131311a62923
148c6c67926
1551c17cca2
hex30e337c6e

13123157102 has 32 divisors (see below), whose sum is σ = 21562789248. Its totient is φ = 5940540000.

The previous prime is 13123157059. The next prime is 13123157137. The reversal of 13123157102 is 20175132131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6795077 + ... + 6797007.

It is an arithmetic number, because the mean of its divisors is an integer number (673837164).

Almost surely, 213123157102 is an apocalyptic number.

13123157102 is a deficient number, since it is larger than the sum of its proper divisors (8439632146).

13123157102 is a wasteful number, since it uses less digits than its factorization.

13123157102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3056.

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

Adding to 13123157102 its reverse (20175132131), we get a palindrome (33298289233).

The spelling of 13123157102 in words is "thirteen billion, one hundred twenty-three million, one hundred fifty-seven thousand, one hundred two".

Divisors: 1 2 11 22 541 571 1082 1142 1931 3862 5951 6281 11902 12562 21241 42482 308911 617822 1044671 1102601 2089342 2205202 3398021 6796042 11491381 12128611 22982762 24257222 596507141 1193014282 6561578551 13123157102