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103390615494 = 23216746174609
BaseRepresentation
bin110000001001010001…
…1111001011111000110
3100212212110200110022100
41200102203321133012
53143220444143434
6115255203412530
710320054505605
oct1402243713706
9325773613270
10103390615494
113a936341771
1218055384146
1399990cabba
14500b4a7a3c
152a51c3b699
hex18128f97c6

103390615494 has 48 divisors (see below), whose sum is σ = 225846260640. Its totient is φ = 34182401280.

The previous prime is 103390615477. The next prime is 103390615567. The reversal of 103390615494 is 494516093301.

103390615494 is a `hidden beast` number, since 10 + 3 + 3 + 90 + 6 + 1 + 549 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1348462 + ... + 1423070.

It is an arithmetic number, because the mean of its divisors is an integer number (4705130430).

Almost surely, 2103390615494 is an apocalyptic number.

103390615494 is an abundant number, since it is smaller than the sum of its proper divisors (122455645146).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103390615494 is a wasteful number, since it uses less digits than its factorization.

103390615494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75245 (or 75242 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The spelling of 103390615494 in words is "one hundred three billion, three hundred ninety million, six hundred fifteen thousand, four hundred ninety-four".

Divisors: 1 2 3 6 9 18 167 334 461 501 922 1002 1383 1503 2766 3006 4149 8298 74609 76987 149218 153974 223827 230961 447654 461922 671481 692883 1342962 1385766 12459703 24919406 34394749 37379109 68789498 74758218 103184247 112137327 206368494 224274654 309552741 619105482 5743923083 11487846166 17231769249 34463538498 51695307747 103390615494