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31230302124401 = 1741110940402837
BaseRepresentation
bin1110001100111010111110…
…00100000111100101110001
311002120120212110012021121022
413012131133010013211301
513043134124320440101
6150231000331305225
76402213000036242
oct706353704074561
9132516773167538
1031230302124401
119a50773416766
123604784bab215
13145700a881a83
1479d7aa0c6cc9
15392589dbba1b
hex1c675f107971

31230302124401 has 16 divisors (see below), whose sum is σ = 33904445536080. Its totient is φ = 28650459064320.

The previous prime is 31230302124383. The next prime is 31230302124533. The reversal of 31230302124401 is 10442120303213.

It can be written as a sum of positive squares in 8 ways, for example, as 2175226768225 + 29055075356176 = 1474865^2 + 5390276^2 .

It is a cyclic number.

It is not a de Polignac number, because 31230302124401 - 26 = 31230302124337 is a prime.

It is a super-3 number, since 3×312303021244013 (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31230302624401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19428446 + ... + 20974391.

It is an arithmetic number, because the mean of its divisors is an integer number (2119027846005).

Almost surely, 231230302124401 is an apocalyptic number.

It is an amenable number.

31230302124401 is a deficient number, since it is larger than the sum of its proper divisors (2674143411679).

31230302124401 is a wasteful number, since it uses less digits than its factorization.

31230302124401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40404004.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 31230302124401 its reverse (10442120303213), we get a palindrome (41672422427614).

The spelling of 31230302124401 in words is "thirty-one trillion, two hundred thirty billion, three hundred two million, one hundred twenty-four thousand, four hundred one".

Divisors: 1 17 41 697 1109 18853 45469 772973 40402837 686848229 1656516317 28160777389 44806746233 761714685961 1837076595553 31230302124401