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88104221 = 293389773
BaseRepresentation
bin1010100000001…
…01110100011101
320010210011021022
411100011310131
5140023313341
612424213525
72116605422
oct520056435
9203704238
1088104221
1145807007
122560a2a5
131533a09a
14b9b5d49
157b04e4b
hex5405d1d

88104221 has 8 divisors (see below), whose sum is σ = 88746840. Its totient is φ = 87464512.

The previous prime is 88104199. The next prime is 88104223. The reversal of 88104221 is 12240188.

It can be written as a sum of positive squares in 4 ways, for example, as 6002500 + 82101721 = 2450^2 + 9061^2 .

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 88104221 - 214 = 88087837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88104223) 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, 113591 + ... + 114363.

It is an arithmetic number, because the mean of its divisors is an integer number (11093355).

Almost surely, 288104221 is an apocalyptic number.

It is an amenable number.

88104221 is a deficient number, since it is larger than the sum of its proper divisors (642619).

88104221 is a wasteful number, since it uses less digits than its factorization.

88104221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455.

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 88104221 is about 9386.3848738479. The cubic root of 88104221 is about 444.9715438606.

It can be divided in two parts, 8810 and 4221, that added together give a palindrome (13031).

The spelling of 88104221 in words is "eighty-eight million, one hundred four thousand, two hundred twenty-one".

Divisors: 1 293 389 773 113977 226489 300697 88104221