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88471940 = 22518612377
BaseRepresentation
bin1010100010111…
…11100110000100
320011110211200112
411101133212010
5140122100230
612440132152
72122666454
oct521374604
9204424615
1088471940
1145a38307
1225767058
131543857b
14ba6dd64
157b78d95
hex545f984

88471940 has 24 divisors (see below), whose sum is σ = 185969112. Its totient is φ = 35354880.

The previous prime is 88471939. The next prime is 88471949. The reversal of 88471940 is 4917488.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1012036 + 87459904 = 1006^2 + 9352^2 .

It is not an unprimeable number, because it can be changed into a prime (88471949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36032 + ... + 38408.

It is an arithmetic number, because the mean of its divisors is an integer number (7748713).

Almost surely, 288471940 is an apocalyptic number.

It is an amenable number.

88471940 is an abundant number, since it is smaller than the sum of its proper divisors (97497172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

88471940 is a wasteful number, since it uses less digits than its factorization.

88471940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4247 (or 4245 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 88471940 is about 9405.9523707065. The cubic root of 88471940 is about 445.5897411758.

The spelling of 88471940 in words is "eighty-eight million, four hundred seventy-one thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 1861 2377 3722 4754 7444 9305 9508 11885 18610 23770 37220 47540 4423597 8847194 17694388 22117985 44235970 88471940