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31453803742 = 2127487254279
BaseRepresentation
bin11101010010110010…
…101111010011011110
310000012001212210012011
4131102302233103132
51003404133204432
622241044101434
72162311630504
oct352262572336
9100161783164
1031453803742
1112380941329
12611999487a
132c736313ba
141745564674
15c4159a847
hex752caf4de

31453803742 has 16 divisors (see below), whose sum is σ = 47650037760. Its totient is φ = 15570967608.

The previous prime is 31453803737. The next prime is 31453803757. The reversal of 31453803742 is 24730835413.

It is a junction number, because it is equal to n+sod(n) for n = 31453803695 and 31453803704.

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, 3442 + ... + 250837.

It is an arithmetic number, because the mean of its divisors is an integer number (2978127360).

Almost surely, 231453803742 is an apocalyptic number.

31453803742 is a deficient number, since it is larger than the sum of its proper divisors (16196234018).

31453803742 is a wasteful number, since it uses less digits than its factorization.

31453803742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254895.

The product of its (nonzero) digits is 241920, while the sum is 40.

The spelling of 31453803742 in words is "thirty-one billion, four hundred fifty-three million, eight hundred three thousand, seven hundred forty-two".

Divisors: 1 2 127 254 487 974 61849 123698 254279 508558 32293433 64586866 123833873 247667746 15726901871 31453803742