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31302011222204 = 2213040296001019
BaseRepresentation
bin1110001111000000100010…
…10000100111100010111100
311002211102221222111212220112
413013200101100213202330
513100323004333102304
6150323540114205152
76410332006232312
oct707402120474274
9132742858455815
1031302011222204
119a79121325258
1236166582837b8
1314609c810c9a8
147a304dab20b2
1539438557bb6e
hex1c78114278bc

31302011222204 has 12 divisors (see below), whose sum is σ = 54778570774200. Its totient is φ = 15650991001008.

The previous prime is 31302011222201. The next prime is 31302011222233. The reversal of 31302011222204 is 40222211020313.

It is a self number, because there is not a number n which added to its sum of digits gives 31302011222204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31302011222201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2215607 + ... + 8216625.

It is an arithmetic number, because the mean of its divisors is an integer number (4564880897850).

Almost surely, 231302011222204 is an apocalyptic number.

It is an amenable number.

31302011222204 is a deficient number, since it is larger than the sum of its proper divisors (23476559551996).

31302011222204 is a wasteful number, since it uses less digits than its factorization.

31302011222204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7305052 (or 7305050 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 31302011222204 its reverse (40222211020313), we get a palindrome (71524222242517).

The spelling of 31302011222204 in words is "thirty-one trillion, three hundred two billion, eleven million, two hundred twenty-two thousand, two hundred four".

Divisors: 1 2 4 1304029 2608058 5216116 6001019 12002038 24004076 7825502805551 15651005611102 31302011222204