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31455305048 = 239534125827
BaseRepresentation
bin11101010010111000…
…011101110101011000
310000012011201001121002
4131102320131311120
51003410024230143
622241140204132
72162330452466
oct352270356530
9100164631532
1031455305048
1112381777282
12611a399648
132c73a3884b
141745835836
15c417955b8
hex752e1dd58

31455305048 has 16 divisors (see below), whose sum is σ = 59040598680. Its totient is φ = 15711145408.

The previous prime is 31455305047. The next prime is 31455305099. The reversal of 31455305048 is 84050355413.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31455305041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2055290 + ... + 2070537.

Almost surely, 231455305048 is an apocalyptic number.

It is an amenable number.

31455305048 is a deficient number, since it is larger than the sum of its proper divisors (27585293632).

31455305048 is a wasteful number, since it uses less digits than its factorization.

31455305048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4126786 (or 4126782 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 31455305048 in words is "thirty-one billion, four hundred fifty-five million, three hundred five thousand, forty-eight".

Divisors: 1 2 4 8 953 1906 3812 7624 4125827 8251654 16503308 33006616 3931913131 7863826262 15727652524 31455305048