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13123410225456 = 2439711249722531
BaseRepresentation
bin1011111011111000100000…
…1101000110100100110000
31201110120211000121112122110
42332332020031012210300
53210003221004203311
643524451134005320
72523064224250146
oct276761015064460
951416730545573
1013123410225456
1141aa674a44763
12157b4a3646840
137426bc53896b
1433526823b596
1517b583c148a6
hexbef88346930

13123410225456 has 80 divisors (see below), whose sum is σ = 33941279726208. Its totient is φ = 4369421337600.

The previous prime is 13123410225451. The next prime is 13123410225461. The reversal of 13123410225456 is 65452201432131.

It is an interprime number because it is at equal distance from previous prime (13123410225451) and next prime (13123410225461).

It is not an unprimeable number, because it can be changed into a prime (13123410225451) 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, 582448911 + ... + 582471441.

Almost surely, 213123410225456 is an apocalyptic number.

13123410225456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13123410225456 is an abundant number, since it is smaller than the sum of its proper divisors (20817869500752).

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

13123410225456 is a wasteful number, since it uses less digits than its factorization.

13123410225456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36010 (or 36004 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

Adding to 13123410225456 its reverse (65452201432131), we get a palindrome (78575611657587).

The spelling of 13123410225456 in words is "thirteen trillion, one hundred twenty-three billion, four hundred ten million, two hundred twenty-five thousand, four hundred fifty-six".

Divisors: 1 2 3 4 6 8 12 16 24 48 971 1942 2913 3884 5826 7768 11652 12497 15536 22531 23304 24994 37491 45062 46608 49988 67593 74982 90124 99976 135186 149964 180248 199952 270372 299928 360496 540744 599856 1081488 12134587 21877601 24269174 36403761 43755202 48538348 65632803 72807522 87510404 97076696 131265606 145615044 175020808 194153392 262531212 281569907 291230088 350041616 525062424 563139814 582460176 844709721 1050124848 1126279628 1689419442 2252559256 3378838884 4505118512 6757677768 13515355536 273404379697 546808759394 820213139091 1093617518788 1640426278182 2187235037576 3280852556364 4374470075152 6561705112728 13123410225456