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88055201381 = 7471223218843
BaseRepresentation
bin101001000000001111…
…1111011111001100101
322102021201101200221212
41102000133323321211
52420314112421011
6104241344321205
76235042601510
oct1220037737145
9272251350855
1088055201381
1134386958104
1215095613205
1383c3c34974
1443948d1d77
15245577008b
hex14807fbe65

88055201381 has 16 divisors (see below), whose sum is σ = 102860181504. Its totient is φ = 73809279024.

The previous prime is 88055201341. The next prime is 88055201389. The reversal of 88055201381 is 18310255088.

It is not a de Polignac number, because 88055201381 - 234 = 70875332197 is a prime.

It is a super-2 number, since 2×880552013812 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88055201389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 292946 + ... + 511788.

It is an arithmetic number, because the mean of its divisors is an integer number (6428761344).

Almost surely, 288055201381 is an apocalyptic number.

It is an amenable number.

88055201381 is a deficient number, since it is larger than the sum of its proper divisors (14804980123).

88055201381 is a wasteful number, since it uses less digits than its factorization.

88055201381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220120.

The product of its (nonzero) digits is 76800, while the sum is 41.

The spelling of 88055201381 in words is "eighty-eight billion, fifty-five million, two hundred one thousand, three hundred eighty-one".

Divisors: 1 7 47 329 1223 8561 57481 218843 402367 1531901 10285621 71999347 267644989 1873514923 12579314483 88055201381