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88313690 = 258831369
BaseRepresentation
bin1010100001110…
…00111101011010
320011011210121102
411100320331122
5140102014230
612432511402
72121440213
oct520707532
9204153542
1088313690
114593a423
12256ab562
13153b152a
14ba2c40a
157b47045
hex5438f5a

88313690 has 8 divisors (see below), whose sum is σ = 158964660. Its totient is φ = 35325472.

The previous prime is 88313689. The next prime is 88313707. The reversal of 88313690 is 9631388.

It can be written as a sum of positive squares in 2 ways, for example, as 76335169 + 11978521 = 8737^2 + 3461^2 .

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

It is a super-2 number, since 2×883136902 = 15598615682832200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4415675 + ... + 4415694.

Almost surely, 288313690 is an apocalyptic number.

88313690 is a deficient number, since it is larger than the sum of its proper divisors (70650970).

88313690 is a wasteful number, since it uses less digits than its factorization.

88313690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8831376.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 88313690 is about 9397.5363792858. The cubic root of 88313690 is about 445.3239067520.

It can be divided in two parts, 8831 and 3690, that added together give a palindrome (12521).

The spelling of 88313690 in words is "eighty-eight million, three hundred thirteen thousand, six hundred ninety".

Divisors: 1 2 5 10 8831369 17662738 44156845 88313690