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31414730 = 253141473
BaseRepresentation
bin111011111010…
…1100111001010
32012010000220112
41313311213022
531020232410
63041154322
7531010064
oct167654712
965100815
1031414730
1116807396
12a62b9a2
13667bbc9
14425a734
152b58105
hex1df59ca

31414730 has 8 divisors (see below), whose sum is σ = 56546532. Its totient is φ = 12565888.

The previous prime is 31414723. The next prime is 31414777. The reversal of 31414730 is 3741413.

It can be written as a sum of positive squares in 2 ways, for example, as 25999801 + 5414929 = 5099^2 + 2327^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 31414696 and 31414705.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1570727 + ... + 1570746.

Almost surely, 231414730 is an apocalyptic number.

31414730 is a deficient number, since it is larger than the sum of its proper divisors (25131802).

31414730 is a wasteful number, since it uses less digits than its factorization.

31414730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3141480.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 31414730 is about 5604.8844769540. The cubic root of 31414730 is about 315.5327509382.

The spelling of 31414730 in words is "thirty-one million, four hundred fourteen thousand, seven hundred thirty".

Divisors: 1 2 5 10 3141473 6282946 15707365 31414730