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31001032303013 = 294722744704551
BaseRepresentation
bin1110000110001111111011…
…00001001010000110100101
311001202200002020120121111002
413003013331201022012211
513030410103232144023
6145533402211323045
76346515323516063
oct703077541120645
9131680066517432
1031001032303013
1199725115a3533
12358825abb0485
13143b500545276
1479265a94d033
1538b61bea2b28
hex1c31fd84a1a5

31001032303013 has 8 divisors (see below), whose sum is σ = 32752374554880. Its totient is φ = 29295179460400.

The previous prime is 31001032302949. The next prime is 31001032303037. The reversal of 31001032303013 is 31030323010013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31001032303013 - 26 = 31001032302949 is a prime.

It is a super-2 number, since 2×310010323030132 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31001032303513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11372350913 + ... + 11372353638.

It is an arithmetic number, because the mean of its divisors is an integer number (4094046819360).

Almost surely, 231001032303013 is an apocalyptic number.

It is an amenable number.

31001032303013 is a deficient number, since it is larger than the sum of its proper divisors (1751342251867).

31001032303013 is a wasteful number, since it uses less digits than its factorization.

31001032303013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22744704627.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 31001032303013 its reverse (31030323010013), we get a palindrome (62031355313026).

The spelling of 31001032303013 in words is "thirty-one trillion, one billion, thirty-two million, three hundred three thousand, thirteen".

Divisors: 1 29 47 1363 22744704551 659596431979 1069001113897 31001032303013