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88250138 = 2731514003
BaseRepresentation
bin1010100001010…
…01011100011010
320011001120102122
411100221130122
5140043001023
612431301242
72121054014
oct520513432
9204046378
1088250138
11458a66a9
122567a822
131538b622
14ba131b4
157b332c8
hex542971a

88250138 has 16 divisors (see below), whose sum is σ = 135110976. Its totient is φ = 43221600.

The previous prime is 88250137. The next prime is 88250203. The reversal of 88250138 is 83105288.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 88250098 and 88250107.

It is not an unprimeable number, because it can be changed into a prime (88250131) 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, 20045 + ... + 24047.

It is an arithmetic number, because the mean of its divisors is an integer number (8444436).

Almost surely, 288250138 is an apocalyptic number.

88250138 is a deficient number, since it is larger than the sum of its proper divisors (46860838).

88250138 is a wasteful number, since it uses less digits than its factorization.

88250138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4229.

The product of its (nonzero) digits is 15360, while the sum is 35.

The square root of 88250138 is about 9394.1544590240. The cubic root of 88250138 is about 445.2170602887.

It can be divided in two parts, 88250 and 138, that added together give a palindrome (88388).

The spelling of 88250138 in words is "eighty-eight million, two hundred fifty thousand, one hundred thirty-eight".

Divisors: 1 2 73 146 151 302 4003 8006 11023 22046 292219 584438 604453 1208906 44125069 88250138