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88430540 = 22511401957
BaseRepresentation
bin1010100010101…
…01011111001100
320011101201220012
411101111133030
5140114234130
612435212352
72122434662
oct521253714
9204351805
1088430540
1145a0a1a0
12257470b8
1315422783
14ba5cc32
157b6b995
hex54557cc

88430540 has 24 divisors (see below), whose sum is σ = 202586832. Its totient is φ = 32156480.

The previous prime is 88430533. The next prime is 88430543. The reversal of 88430540 is 4503488.

It is a junction number, because it is equal to n+sod(n) for n = 88430497 and 88430506.

It is not an unprimeable number, because it can be changed into a prime (88430543) 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, 200759 + ... + 201198.

It is an arithmetic number, because the mean of its divisors is an integer number (8441118).

Almost surely, 288430540 is an apocalyptic number.

It is an amenable number.

88430540 is an abundant number, since it is smaller than the sum of its proper divisors (114156292).

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

88430540 is a wasteful number, since it uses less digits than its factorization.

88430540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401977 (or 401975 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 88430540 is about 9403.7513791040. The cubic root of 88430540 is about 445.5202265045.

The spelling of 88430540 in words is "eighty-eight million, four hundred thirty thousand, five hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 401957 803914 1607828 2009785 4019570 4421527 8039140 8843054 17686108 22107635 44215270 88430540