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88424840 = 2357315803
BaseRepresentation
bin1010100010101…
…00000110001000
320011101110002002
411101110012020
5140114043330
612435130132
72122412240
oct521240610
9204343062
1088424840
1145a05989
1225743948
131541ccba
14ba5ab20
157b69e45
hex5454188

88424840 has 32 divisors (see below), whose sum is σ = 227378880. Its totient is φ = 30316992.

The previous prime is 88424789. The next prime is 88424849. The reversal of 88424840 is 4842488.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 88424794 and 88424803.

It is not an unprimeable number, because it can be changed into a prime (88424849) 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, 157622 + ... + 158181.

It is an arithmetic number, because the mean of its divisors is an integer number (7105590).

Almost surely, 288424840 is an apocalyptic number.

It is an amenable number.

88424840 is an abundant number, since it is smaller than the sum of its proper divisors (138954040).

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

88424840 is a wasteful number, since it uses less digits than its factorization.

88424840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315821 (or 315817 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 38.

The square root of 88424840 is about 9403.4483036809. The cubic root of 88424840 is about 445.5106539449.

The spelling of 88424840 in words is "eighty-eight million, four hundred twenty-four thousand, eight hundred forty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 315803 631606 1263212 1579015 2210621 2526424 3158030 4421242 6316060 8842484 11053105 12632120 17684968 22106210 44212420 88424840