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31540443114 = 2319792656261
BaseRepresentation
bin11101010111111101…
…001111011111101010
310000102002220112001210
4131113331033133222
51004043323134424
622253421053550
72164413225435
oct352775173752
9100362815053
1031540443114
1112415837814
1261429b72b6
132c885777bb
141752c7881c
15c48eb1729
hex757f4f7ea

31540443114 has 16 divisors (see below), whose sum is σ = 63112785120. Its totient is φ = 10508164560.

The previous prime is 31540443097. The next prime is 31540443131. The reversal of 31540443114 is 41134404513.

It is an interprime number because it is at equal distance from previous prime (31540443097) and next prime (31540443131).

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, 1316257 + ... + 1340004.

It is an arithmetic number, because the mean of its divisors is an integer number (3944549070).

Almost surely, 231540443114 is an apocalyptic number.

31540443114 is an abundant number, since it is smaller than the sum of its proper divisors (31572342006).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31540443114 is a wasteful number, since it uses less digits than its factorization.

31540443114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2658245.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 31540443114 its reverse (41134404513), we get a palindrome (72674847627).

The spelling of 31540443114 in words is "thirty-one billion, five hundred forty million, four hundred forty-three thousand, one hundred fourteen".

Divisors: 1 2 3 6 1979 3958 5937 11874 2656261 5312522 7968783 15937566 5256740519 10513481038 15770221557 31540443114