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31331302103013 = 311949433397061
BaseRepresentation
bin1110001111110111000110…
…01000011101011111100101
311002221020120022110210121220
413013323203020131133211
513101313001314244023
6150345222415330553
76412416605506263
oct707734310353745
9132836508423556
1031331302103013
119a8a592260570
123620271820a59
1314636b55c1a23
147a462bc8b433
15394eebcd13e3
hex1c7ee321d7e5

31331302103013 has 8 divisors (see below), whose sum is σ = 45572803058976. Its totient is φ = 18988667941200.

The previous prime is 31331302102999. The next prime is 31331302103027. The reversal of 31331302103013 is 31030120313313.

It is an interprime number because it is at equal distance from previous prime (31331302102999) and next prime (31331302103027).

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

It is not a de Polignac number, because 31331302103013 - 26 = 31331302102949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31331302143013) 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, 474716698498 + ... + 474716698563.

It is an arithmetic number, because the mean of its divisors is an integer number (5696600382372).

Almost surely, 231331302103013 is an apocalyptic number.

31331302103013 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

31331302103013 is a deficient number, since it is larger than the sum of its proper divisors (14241500955963).

31331302103013 is a wasteful number, since it uses less digits than its factorization.

31331302103013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949433397075.

The product of its (nonzero) digits is 1458, while the sum is 24.

Adding to 31331302103013 its reverse (31030120313313), we get a palindrome (62361422416326).

The spelling of 31331302103013 in words is "thirty-one trillion, three hundred thirty-one billion, three hundred two million, one hundred three thousand, thirteen".

Divisors: 1 3 11 33 949433397061 2848300191183 10443767367671 31331302103013