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400312965742 = 22369971243741
BaseRepresentation
bin1011101001101001000…
…00110001101001101110
31102021021111110200021121
411310310200301221232
523024320104400432
6503522400051154
740631062031404
oct5646440615156
91367244420247
10400312965742
11144854262178
1265700003aba
132b998428881
141553798d474
15a62e119197
hex5d34831a6e

400312965742 has 16 divisors (see below), whose sum is σ = 626666869152. Its totient is φ = 191426510880.

The previous prime is 400312965737. The next prime is 400312965751. The reversal of 400312965742 is 247569213004.

It is a super-2 number, since 2×4003129657422 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300009 + ... + 943732.

It is an arithmetic number, because the mean of its divisors is an integer number (39166679322).

Almost surely, 2400312965742 is an apocalyptic number.

400312965742 is a deficient number, since it is larger than the sum of its proper divisors (226353903410).

400312965742 is a wasteful number, since it uses less digits than its factorization.

400312965742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250763.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 400312965742 in words is "four hundred billion, three hundred twelve million, nine hundred sixty-five thousand, seven hundred forty-two".

Divisors: 1 2 23 46 6997 13994 160931 321862 1243741 2487482 28606043 57212086 8702455777 17404911554 200156482871 400312965742