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40355031140 = 2252017751557
BaseRepresentation
bin100101100101010110…
…001110100001100100
310212011102002222122222
4211211112032201210
51130121341444030
630312220211512
72626015051004
oct454526164144
9125142088588
1040355031140
11161293aa206
1279a2999b98
133a617aa768
141d4b7c8004
1510b2c663e5
hex96558e864

40355031140 has 12 divisors (see below), whose sum is σ = 84745565436. Its totient is φ = 16142012448.

The previous prime is 40355031083. The next prime is 40355031151. The reversal of 40355031140 is 4113055304.

It can be written as a sum of positive squares in 2 ways, for example, as 11875768576 + 28479262564 = 108976^2 + 168758^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1008875759 + ... + 1008875798.

It is an arithmetic number, because the mean of its divisors is an integer number (7062130453).

Almost surely, 240355031140 is an apocalyptic number.

It is an amenable number.

40355031140 is an abundant number, since it is smaller than the sum of its proper divisors (44390534296).

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

40355031140 is a wasteful number, since it uses less digits than its factorization.

40355031140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2017751566 (or 2017751564 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 40355031140 its reverse (4113055304), we get a palindrome (44468086444).

The spelling of 40355031140 in words is "forty billion, three hundred fifty-five million, thirty-one thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 2017751557 4035503114 8071006228 10088757785 20177515570 40355031140