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31300231030 = 2523373678053
BaseRepresentation
bin11101001001101000…
…111001111101110110
32222210100220111000221
4131021220321331312
51003100324343110
622213520324554
72155435400605
oct351150717566
988710814027
1031300231030
1112302189932
12609647375a
132c4a881283
14172cdc9a3c
15c32d627da
hex749a39f76

31300231030 has 32 divisors (see below), whose sum is σ = 60378934464. Its totient is φ = 11652068736.

The previous prime is 31300230971. The next prime is 31300231033. The reversal of 31300231030 is 3013200313.

It is a junction number, because it is equal to n+sod(n) for n = 31300230995 and 31300231013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31300231033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1830517 + ... + 1847536.

It is an arithmetic number, because the mean of its divisors is an integer number (1886841702).

Almost surely, 231300231030 is an apocalyptic number.

31300231030 is a deficient number, since it is larger than the sum of its proper divisors (29078703434).

31300231030 is a wasteful number, since it uses less digits than its factorization.

31300231030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3678120.

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 31300231030 its reverse (3013200313), we get a palindrome (34313431343).

The spelling of 31300231030 in words is "thirty-one billion, three hundred million, two hundred thirty-one thousand, thirty".

Divisors: 1 2 5 10 23 37 46 74 115 185 230 370 851 1702 4255 8510 3678053 7356106 18390265 36780530 84595219 136087961 169190438 272175922 422976095 680439805 845952190 1360879610 3130023103 6260046206 15650115515 31300231030