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1225960993 = 29108738891
BaseRepresentation
bin100100100010010…
…1010111000100001
310011102212021022201
41021010222320201
510002321222433
6321352333201
742244332205
oct11104527041
93142767281
101225960993
1157a028704
122a26a4201
13166cb3c0a
14b8b6ab05
1572967a7d
hex4912ae21

1225960993 has 8 divisors (see below), whose sum is σ = 1269434880. Its totient is φ = 1182567120.

The previous prime is 1225960991. The next prime is 1225961017. The reversal of 1225960993 is 3990695221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1225960993 - 21 = 1225960991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1225960991) 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, 12078 + ... + 50968.

It is an arithmetic number, because the mean of its divisors is an integer number (158679360).

Almost surely, 21225960993 is an apocalyptic number.

It is an amenable number.

1225960993 is a deficient number, since it is larger than the sum of its proper divisors (43473887).

1225960993 is a wasteful number, since it uses less digits than its factorization.

1225960993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40007.

The product of its (nonzero) digits is 262440, while the sum is 46.

The square root of 1225960993 is about 35013.7257800423. The cubic root of 1225960993 is about 1070.2672034805.

The spelling of 1225960993 in words is "one billion, two hundred twenty-five million, nine hundred sixty thousand, nine hundred ninety-three".

Divisors: 1 29 1087 31523 38891 1127839 42274517 1225960993