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88880080 = 2451765353
BaseRepresentation
bin1010100110000…
…11001111010000
320012020120112211
411103003033100
5140223130310
612453001504
72126316412
oct523031720
9205216484
1088880080
1146196a13
1225923294
131554c283
14bb389b2
157c09c8a
hex54c33d0

88880080 has 40 divisors (see below), whose sum is σ = 218805192. Its totient is φ = 33460224.

The previous prime is 88880059. The next prime is 88880093. The reversal of 88880080 is 8008888.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 36288576 + 52591504 = 6024^2 + 7252^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31317 + ... + 34036.

Almost surely, 288880080 is an apocalyptic number.

88880080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

88880080 is an abundant number, since it is smaller than the sum of its proper divisors (129925112).

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

88880080 is a wasteful number, since it uses less digits than its factorization.

88880080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65383 (or 65377 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 40.

The square root of 88880080 is about 9427.6232423660. The cubic root of 88880080 is about 446.2738904999.

The spelling of 88880080 in words is "eighty-eight million, eight hundred eighty thousand, eighty".

Divisors: 1 2 4 5 8 10 16 17 20 34 40 68 80 85 136 170 272 340 680 1360 65353 130706 261412 326765 522824 653530 1045648 1111001 1307060 2222002 2614120 4444004 5228240 5555005 8888008 11110010 17776016 22220020 44440040 88880080