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31414480 = 2453710613
BaseRepresentation
bin111011111010…
…1100011010000
32012010000120021
41313311203100
531020230410
63041153224
7531006256
oct167654320
965100507
1031414480
1116807189
12a62b814
13667ba66
14425a5d6
152b57eda
hex1df58d0

31414480 has 40 divisors (see below), whose sum is σ = 75019752. Its totient is φ = 12225024.

The previous prime is 31414477. The next prime is 31414499. The reversal of 31414480 is 8441413.

It can be written as a sum of positive squares in 4 ways, for example, as 19963024 + 11451456 = 4468^2 + 3384^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2347 + ... + 8266.

Almost surely, 231414480 is an apocalyptic number.

It is an amenable number.

31414480 is an abundant number, since it is smaller than the sum of its proper divisors (43605272).

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

31414480 is a wasteful number, since it uses less digits than its factorization.

31414480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10663 (or 10657 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 31414480 is about 5604.8621749335. The cubic root of 31414480 is about 315.5319139275.

Adding to 31414480 its reverse (8441413), we get a palindrome (39855893).

The spelling of 31414480 in words is "thirty-one million, four hundred fourteen thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 37 40 74 80 148 185 296 370 592 740 1480 2960 10613 21226 42452 53065 84904 106130 169808 212260 392681 424520 785362 849040 1570724 1963405 3141448 3926810 6282896 7853620 15707240 31414480