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88950205921 = 139639929539
BaseRepresentation
bin101001011010111011…
…0000110110111100001
322111121002111122101011
41102311312012313201
52424132223042141
6104510235340521
76266161163263
oct1226566066741
9274532448334
1088950205921
11347a6088285
12152a52b1741
13850749c655
14443b70bb33
1524a9111881
hex14b5d86de1

88950205921 has 4 divisors (see below), whose sum is σ = 89590135600. Its totient is φ = 88310276244.

The previous prime is 88950205919. The next prime is 88950205933. The reversal of 88950205921 is 12950205988.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 88950205921 - 21 = 88950205919 is a prime.

It is a super-3 number, since 3×889502059213 (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88950205951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319964631 + ... + 319964908.

It is an arithmetic number, because the mean of its divisors is an integer number (22397533900).

Almost surely, 288950205921 is an apocalyptic number.

It is an amenable number.

88950205921 is a deficient number, since it is larger than the sum of its proper divisors (639929679).

88950205921 is a wasteful number, since it uses less digits than its factorization.

88950205921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639929678.

The product of its (nonzero) digits is 518400, while the sum is 49.

The spelling of 88950205921 in words is "eighty-eight billion, nine hundred fifty million, two hundred five thousand, nine hundred twenty-one".

Divisors: 1 139 639929539 88950205921