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31201200434 = 2113436331643
BaseRepresentation
bin11101000011101111…
…001000100100110010
32222112110120012121002
4131003233020210302
51002400001403214
622200022002002
72153123553635
oct350357104462
988473505532
1031201200434
111226129a768
126069276302
132c331b9aa1
14171dbabc1c
15c293001de
hex743bc8932

31201200434 has 16 divisors (see below), whose sum is σ = 47228290272. Its totient is φ = 15458509248.

The previous prime is 31201200397. The next prime is 31201200467. The reversal of 31201200434 is 43400210213.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 970217 + ... + 1001859.

It is an arithmetic number, because the mean of its divisors is an integer number (2951768142).

Almost surely, 231201200434 is an apocalyptic number.

31201200434 is a deficient number, since it is larger than the sum of its proper divisors (16027089838).

31201200434 is a wasteful number, since it uses less digits than its factorization.

31201200434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36121.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 31201200434 its reverse (43400210213), we get a palindrome (74601410647).

The spelling of 31201200434 in words is "thirty-one billion, two hundred one million, two hundred thousand, four hundred thirty-four".

Divisors: 1 2 113 226 4363 8726 31643 63286 493019 986038 3575659 7151318 138058409 276116818 15600600217 31201200434