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88420530 = 23511267941
BaseRepresentation
bin1010100010100…
…11000010110010
320011101020011110
411101103002302
5140113424110
612435054150
72122363542
oct521230262
9204336143
1088420530
1145a02720
1225741356
131541b053
14ba59322
157b68a20
hex54530b2

88420530 has 32 divisors (see below), whose sum is σ = 231501888. Its totient is φ = 21435200.

The previous prime is 88420517. The next prime is 88420543. The reversal of 88420530 is 3502488.

It is an interprime number because it is at equal distance from previous prime (88420517) and next prime (88420543).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133641 + ... + 134300.

It is an arithmetic number, because the mean of its divisors is an integer number (7234434).

Almost surely, 288420530 is an apocalyptic number.

88420530 is an abundant number, since it is smaller than the sum of its proper divisors (143081358).

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

88420530 is a wasteful number, since it uses less digits than its factorization.

88420530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267962.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 88420530 is about 9403.2191296385. The cubic root of 88420530 is about 445.5034154731.

The spelling of 88420530 in words is "eighty-eight million, four hundred twenty thousand, five hundred thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 267941 535882 803823 1339705 1607646 2679410 2947351 4019115 5894702 8038230 8842053 14736755 17684106 29473510 44210265 88420530