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920751055 = 57153117183
BaseRepresentation
bin110110111000011…
…000101111001111
32101011112222222221
4312320120233033
53341203013210
6231210520211
731550153260
oct6670305717
92334488887
10920751055
11432815994
12218436067
131189b0913
148a3dc967
1555c7a1da
hex36e18bcf

920751055 has 16 divisors (see below), whose sum is σ = 1263642624. Its totient is φ = 630923040.

The previous prime is 920751049. The next prime is 920751067. The reversal of 920751055 is 550157029.

It is a de Polignac number, because none of the positive numbers 2k-920751055 is a prime.

It is a super-2 number, since 2×9207510552 = 1695565010567226050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 920751055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44994 + ... + 62176.

It is an arithmetic number, because the mean of its divisors is an integer number (78977664).

Almost surely, 2920751055 is an apocalyptic number.

920751055 is a deficient number, since it is larger than the sum of its proper divisors (342891569).

920751055 is a wasteful number, since it uses less digits than its factorization.

920751055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18726.

The product of its (nonzero) digits is 15750, while the sum is 34.

The square root of 920751055 is about 30343.8800254681. The cubic root of 920751055 is about 972.8534164417.

The spelling of 920751055 in words is "nine hundred twenty million, seven hundred fifty-one thousand, fifty-five".

Divisors: 1 5 7 35 1531 7655 10717 17183 53585 85915 120281 601405 26307173 131535865 184150211 920751055