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31054312400 = 2452671158743
BaseRepresentation
bin11100111010111110…
…110011001111010000
32222011020011112002112
4130322332303033100
51002044400444100
622133253404452
72146361204636
oct347276631720
988136145075
1031054312400
11121963935a1
126028039728
132c0b93a4a7
141708493356
15c1b487b35
hex73afb33d0

31054312400 has 60 divisors (see below), whose sum is σ = 75721602912. Its totient is φ = 12236315520.

The previous prime is 31054312391. The next prime is 31054312423. The reversal of 31054312400 is 421345013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 552572 + ... + 606171.

Almost surely, 231054312400 is an apocalyptic number.

It is an amenable number.

31054312400 is an abundant number, since it is smaller than the sum of its proper divisors (44667290512).

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

31054312400 is a wasteful number, since it uses less digits than its factorization.

31054312400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158828 (or 1158817 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 31054312400 its reverse (421345013), we get a palindrome (31475657413).

The spelling of 31054312400 in words is "thirty-one billion, fifty-four million, three hundred twelve thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 67 80 100 134 200 268 335 400 536 670 1072 1340 1675 2680 3350 5360 6700 13400 26800 1158743 2317486 4634972 5793715 9269944 11587430 18539888 23174860 28968575 46349720 57937150 77635781 92699440 115874300 155271562 231748600 310543124 388178905 463497200 621086248 776357810 1242172496 1552715620 1940894525 3105431240 3881789050 6210862480 7763578100 15527156200 31054312400