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86923305 = 3257279499
BaseRepresentation
bin1010010111001…
…01100000101001
320001120011100200
411023211200221
5134223021210
612343022413
72103556500
oct513454051
9201504320
1086923305
114507a847
122513aa09
1315015711
14b789837
1579700c0
hex52e5829

86923305 has 72 divisors (see below), whose sum is σ = 177840000. Its totient is φ = 39154752.

The previous prime is 86923303. The next prime is 86923307. The reversal of 86923305 is 50332968.

It is an interprime number because it is at equal distance from previous prime (86923303) and next prime (86923307).

It is not a de Polignac number, because 86923305 - 21 = 86923303 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 86923305.

It is not an unprimeable number, because it can be changed into a prime (86923303) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 173946 + ... + 174444.

It is an arithmetic number, because the mean of its divisors is an integer number (2470000).

Almost surely, 286923305 is an apocalyptic number.

It is an amenable number.

86923305 is an abundant number, since it is smaller than the sum of its proper divisors (90916695).

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

86923305 is a wasteful number, since it uses less digits than its factorization.

86923305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603 (or 593 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 86923305 is about 9323.2668630690. The cubic root of 86923305 is about 442.9745173003.

The spelling of 86923305 in words is "eighty-six million, nine hundred twenty-three thousand, three hundred five".

Divisors: 1 3 5 7 9 15 21 35 45 49 63 79 105 147 237 245 315 395 441 499 553 711 735 1185 1497 1659 2205 2495 2765 3493 3555 3871 4491 4977 7485 8295 10479 11613 17465 19355 22455 24451 24885 31437 34839 39421 52395 58065 73353 118263 122255 157185 174195 197105 220059 275947 354789 366765 591315 827841 1100295 1379735 1773945 1931629 2483523 4139205 5794887 9658145 12417615 17384661 28974435 86923305