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3131220304230 = 2353710127929893
BaseRepresentation
bin101101100100001011010…
…001100010000101100110
3102002100020010102101202220
4231210023101202011212
5402300214344213410
610354243542013210
7442136362303524
oct55441321420546
912070203371686
103131220304230
11aa7a4125a4a7
12426a27417206
13199371487935
14ab7a2499314
15566b47a4070
hex2d90b462166

3131220304230 has 64 divisors (see below), whose sum is σ = 7794451378368. Its totient is φ = 804380889600.

The previous prime is 3131220304229. The next prime is 3131220304273. The reversal of 3131220304230 is 324030221313.

It is a self number, because there is not a number n which added to its sum of digits gives 3131220304230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13852837 + ... + 14077056.

It is an arithmetic number, because the mean of its divisors is an integer number (121788302787).

Almost surely, 23131220304230 is an apocalyptic number.

3131220304230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3131220304230 is an abundant number, since it is smaller than the sum of its proper divisors (4663231074138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3131220304230 is a wasteful number, since it uses less digits than its factorization.

3131220304230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27930041.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 3131220304230 its reverse (324030221313), we get a palindrome (3455250525543).

The spelling of 3131220304230 in words is "three trillion, one hundred thirty-one billion, two hundred twenty million, three hundred four thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 37 74 101 111 185 202 222 303 370 505 555 606 1010 1110 1515 3030 3737 7474 11211 18685 22422 37370 56055 112110 27929893 55859786 83789679 139649465 167579358 279298930 418948395 837896790 1033406041 2066812082 2820919193 3100218123 5167030205 5641838386 6200436246 8462757579 10334060410 14104595965 15501090615 16925515158 28209191930 31002181230 42313787895 84627575790 104374010141 208748020282 313122030423 521870050705 626244060846 1043740101410 1565610152115 3131220304230