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88887420 = 223251672957
BaseRepresentation
bin1010100110001…
…01000001111100
320012020221121200
411103011001330
5140223344140
612453055500
72126346666
oct523050174
9205227550
1088887420
11461a1486
1225927590
131555270b
14bb3b536
157c0c030
hex54c507c

88887420 has 72 divisors (see below), whose sum is σ = 271331424. Its totient is φ = 23553408.

The previous prime is 88887419. The next prime is 88887437. The reversal of 88887420 is 2478888.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28582 + ... + 31538.

It is an arithmetic number, because the mean of its divisors is an integer number (3768492).

Almost surely, 288887420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 88887420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135665712).

88887420 is an abundant number, since it is smaller than the sum of its proper divisors (182444004).

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

88887420 is a wasteful number, since it uses less digits than its factorization.

88887420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3139 (or 3134 counting only the distinct ones).

The product of its (nonzero) digits is 229376, while the sum is 45.

The square root of 88887420 is about 9428.0125159017. The cubic root of 88887420 is about 446.2861750680.

The spelling of 88887420 in words is "eighty-eight million, eight hundred eighty-seven thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 167 180 334 501 668 835 1002 1503 1670 2004 2505 2957 3006 3340 5010 5914 6012 7515 8871 10020 11828 14785 15030 17742 26613 29570 30060 35484 44355 53226 59140 88710 106452 133065 177420 266130 493819 532260 987638 1481457 1975276 2469095 2962914 4444371 4938190 5925828 7407285 8888742 9876380 14814570 17777484 22221855 29629140 44443710 88887420