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31311001030070 = 256148750922961
BaseRepresentation
bin1110001111010001010010…
…00110000000110110110110
311002212022011111102102221102
413013220221012000312312
513100444412230430240
6150332024133050102
76411100536313556
oct707505106006666
9132768144372842
1031311001030070
119a81a14894a33
123618346a86932
1314617cb731b28
147a36639d3166
1539470e8e3815
hex1c7a29180db6

31311001030070 has 16 divisors (see below), whose sum is σ = 56360719574208. Its totient is φ = 12524196474240.

The previous prime is 31311001030069. The next prime is 31311001030117. The reversal of 31311001030070 is 7003010011313.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24846611 + ... + 26076350.

It is an arithmetic number, because the mean of its divisors is an integer number (3522544973388).

Almost surely, 231311001030070 is an apocalyptic number.

31311001030070 is a deficient number, since it is larger than the sum of its proper divisors (25049718544138).

31311001030070 is a wasteful number, since it uses less digits than its factorization.

31311001030070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50984455.

The product of its (nonzero) digits is 189, while the sum is 20.

Adding to 31311001030070 its reverse (7003010011313), we get a palindrome (38314011041383).

The spelling of 31311001030070 in words is "thirty-one trillion, three hundred eleven billion, one million, thirty thousand, seventy".

Divisors: 1 2 5 10 61487 122974 307435 614870 50922961 101845922 254614805 509229610 3131100103007 6262200206014 15655500515035 31311001030070