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61001106056 = 2311693194387
BaseRepresentation
bin111000110011111100…
…110000001010001000
312211110021100021002022
4320303330300022020
51444412240343211
644005025224012
74256443563152
oct706374601210
9184407307068
1061001106056
1123963596940
12b9a5192008
1359a1c93937
142d4980bad2
1518c05a1bdb
hexe33f30288

61001106056 has 16 divisors (see below), whose sum is σ = 124774989840. Its totient is φ = 27727775440.

The previous prime is 61001106043. The next prime is 61001106071. The reversal of 61001106056 is 65060110016.

It is a super-2 number, since 2×610011060562 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346597106 + ... + 346597281.

It is an arithmetic number, because the mean of its divisors is an integer number (7798436865).

Almost surely, 261001106056 is an apocalyptic number.

It is an amenable number.

61001106056 is an abundant number, since it is smaller than the sum of its proper divisors (63773883784).

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

61001106056 is a wasteful number, since it uses less digits than its factorization.

61001106056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693194404 (or 693194400 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The spelling of 61001106056 in words is "sixty-one billion, one million, one hundred six thousand, fifty-six".

Divisors: 1 2 4 8 11 22 44 88 693194387 1386388774 2772777548 5545555096 7625138257 15250276514 30500553028 61001106056