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31503055348 = 2277310188569
BaseRepresentation
bin11101010101101110…
…100111100111110100
310000022111120000200201
4131111232213213310
51004004240232343
622250003450244
72163450360262
oct352556474764
9100274500621
1031503055348
11123a6720836
126132386984
132c808b6c6b
14174bd05432
15c45a7894d
hex755ba79f4

31503055348 has 12 divisors (see below), whose sum is σ = 55201672260. Its totient is φ = 15731148992.

The previous prime is 31503055343. The next prime is 31503055349. The reversal of 31503055348 is 84355030513.

It can be written as a sum of positive squares in 2 ways, for example, as 4410553744 + 27092501604 = 66412^2 + 164598^2 .

It is a super-2 number, since 2×315030553482 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31503055343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5091193 + ... + 5097376.

It is an arithmetic number, because the mean of its divisors is an integer number (4600139355).

Almost surely, 231503055348 is an apocalyptic number.

It is an amenable number.

31503055348 is a deficient number, since it is larger than the sum of its proper divisors (23698616912).

31503055348 is a wasteful number, since it uses less digits than its factorization.

31503055348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10189346 (or 10189344 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 31503055348 in words is "thirty-one billion, five hundred three million, fifty-five thousand, three hundred forty-eight".

Divisors: 1 2 4 773 1546 3092 10188569 20377138 40754276 7875763837 15751527674 31503055348