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31912928400130 = 2531697714754899
BaseRepresentation
bin1110100000110010011101…
…10000101101001100000010
311011222211211211222001002221
413100121032300231030002
513140330134132301010
6151512332533401254
76502430054454361
oct720311660551402
9134884754861087
1031912928400130
11a194219128148
1236b4b3319922a
1314a64b7786a9b
147c4845c277d8
153a51dda78dda
hex1d064ec2d302

31912928400130 has 32 divisors (see below), whose sum is σ = 59304782707200. Its totient is φ = 12351620213760.

The previous prime is 31912928400107. The next prime is 31912928400163. The reversal of 31912928400130 is 3100482921913.

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, 5214580 + ... + 9540319.

It is an arithmetic number, because the mean of its divisors is an integer number (1853274459600).

Almost surely, 231912928400130 is an apocalyptic number.

31912928400130 is a deficient number, since it is larger than the sum of its proper divisors (27391854307070).

31912928400130 is a wasteful number, since it uses less digits than its factorization.

31912928400130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14761914.

The product of its (nonzero) digits is 93312, while the sum is 43.

The spelling of 31912928400130 in words is "thirty-one trillion, nine hundred twelve billion, nine hundred twenty-eight million, four hundred thousand, one hundred thirty".

Divisors: 1 2 5 10 31 62 155 310 6977 13954 34885 69770 216287 432574 1081435 2162870 14754899 29509798 73774495 147548990 457401869 914803738 2287009345 4574018690 102944930323 205889860646 514724651615 1029449303230 3191292840013 6382585680026 15956464200065 31912928400130