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88231421 = 1937125507
BaseRepresentation
bin1010100001001…
…00110111111101
320011000121202102
411100210313331
5140041401141
612431034445
72120645315
oct520446775
9204017672
1088231421
1145893633
122566ba25
1315382c55
14ba0a445
157b2c99b
hex5424dfd

88231421 has 8 divisors (see below), whose sum is σ = 95386080. Its totient is φ = 81327888.

The previous prime is 88231349. The next prime is 88231433. The reversal of 88231421 is 12413288.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 88231421 - 214 = 88215037 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88231621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62051 + ... + 63456.

It is an arithmetic number, because the mean of its divisors is an integer number (11923260).

Almost surely, 288231421 is an apocalyptic number.

It is an amenable number.

88231421 is a deficient number, since it is larger than the sum of its proper divisors (7154659).

88231421 is a wasteful number, since it uses less digits than its factorization.

88231421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125563.

The product of its digits is 3072, while the sum is 29.

The square root of 88231421 is about 9393.1582015848. The cubic root of 88231421 is about 445.1855826537.

The spelling of 88231421 in words is "eighty-eight million, two hundred thirty-one thousand, four hundred twenty-one".

Divisors: 1 19 37 703 125507 2384633 4643759 88231421