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61970417117 = 725121352411
BaseRepresentation
bin111001101101101110…
…011000010111011101
312220221211021100212222
4321231232120113131
52003403411321432
644245133035125
74322453566010
oct715556302735
9186854240788
1061970417117
1124310759664
1210015925aa5
135ac7a4738b
142ddc44b377
15192a720112
hexe6db985dd

61970417117 has 8 divisors (see below), whose sum is σ = 70826354112. Its totient is φ = 53115235200.

The previous prime is 61970417099. The next prime is 61970417147. The reversal of 61970417117 is 71171407916.

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 61970417117 - 28 = 61970416861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61970417147) 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, 359 + ... + 352052.

It is an arithmetic number, because the mean of its divisors is an integer number (8853294264).

Almost surely, 261970417117 is an apocalyptic number.

It is an amenable number.

61970417117 is a deficient number, since it is larger than the sum of its proper divisors (8855936995).

61970417117 is a wasteful number, since it uses less digits than its factorization.

61970417117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377539.

The product of its (nonzero) digits is 74088, while the sum is 44.

The spelling of 61970417117 in words is "sixty-one billion, nine hundred seventy million, four hundred seventeen thousand, one hundred seventeen".

Divisors: 1 7 25121 175847 352411 2466877 8852916731 61970417117