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31000114400 = 255238750143
BaseRepresentation
bin11100110111110000…
…000011010011100000
32222000110011222102012
4130313300003103200
51001442012130100
622124040012052
72145132424163
oct346760032340
988013158365
1031000114400
1112168835862
126011a61028
132c00642378
1417011c5ada
15c1682e135
hex737c034e0

31000114400 has 36 divisors (see below), whose sum is σ = 75679031232. Its totient is φ = 12400045440.

The previous prime is 31000114381. The next prime is 31000114423. The reversal of 31000114400 is 441100013.

It is a happy number.

It is a super-2 number, since 2×310001144002 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19374272 + ... + 19375871.

It is an arithmetic number, because the mean of its divisors is an integer number (2102195312).

Almost surely, 231000114400 is an apocalyptic number.

It is an amenable number.

31000114400 is an abundant number, since it is smaller than the sum of its proper divisors (44678916832).

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

31000114400 is a wasteful number, since it uses less digits than its factorization.

31000114400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38750163 (or 38750150 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 31000114400 its reverse (441100013), we get a palindrome (31441214413).

The spelling of 31000114400 in words is "thirty-one billion, one hundred fourteen thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 200 400 800 38750143 77500286 155000572 193750715 310001144 387501430 620002288 775002860 968753575 1240004576 1550005720 1937507150 3100011440 3875014300 6200022880 7750028600 15500057200 31000114400