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231245230144 = 2630772716189
BaseRepresentation
bin1101011101011101001…
…0100011000001000000
3211002212212200211111111
43113113102203001000
512242042234331034
6254122123453104
722464321011305
oct3272722430100
9732785624444
10231245230144
118a0859a4055
1238997687194
1318a63683a36
14b299a710ac
156036570364
hex35d74a3040

231245230144 has 56 divisors (see below), whose sum is σ = 461033693120. Its totient is φ = 115080362496.

The previous prime is 231245230127. The next prime is 231245230147. The reversal of 231245230144 is 441032542132.

It is not an unprimeable number, because it can be changed into a prime (231245230147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14276002 + ... + 14292190.

It is an arithmetic number, because the mean of its divisors is an integer number (8232744520).

Almost surely, 2231245230144 is an apocalyptic number.

It is an amenable number.

231245230144 is a deficient number, since it is larger than the sum of its proper divisors (229788462976).

231245230144 is a wasteful number, since it uses less digits than its factorization.

231245230144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17235 (or 17225 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 231245230144 its reverse (441032542132), we get a palindrome (672277772276).

The spelling of 231245230144 in words is "two hundred thirty-one billion, two hundred forty-five million, two hundred thirty thousand, one hundred forty-four".

Divisors: 1 2 4 8 16 32 64 307 614 727 1228 1454 2456 2908 4912 5816 9824 11632 16189 19648 23264 32378 46528 64756 129512 223189 259024 446378 518048 892756 1036096 1785512 3571024 4970023 7142048 9940046 11769403 14284096 19880092 23538806 39760184 47077612 79520368 94155224 159040736 188310448 318081472 376620896 753241792 3613206721 7226413442 14452826884 28905653768 57811307536 115622615072 231245230144