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87310401 = 336779301
BaseRepresentation
bin1010011010001…
…00000001000001
320002021211100120
411031010001001
5134322413101
612355210453
72110061163
oct515040101
9202254316
1087310401
1145314662
12252a6a29
131511c979
14b84a933
1579e9b36
hex5344041

87310401 has 8 divisors (see below), whose sum is σ = 116732544. Its totient is φ = 58047600.

The previous prime is 87310393. The next prime is 87310403. The reversal of 87310401 is 10401378.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87310401 - 23 = 87310393 is a prime.

It is a super-2 number, since 2×873104012 = 15246212245561602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87310403) 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, 38550 + ... + 40751.

It is an arithmetic number, because the mean of its divisors is an integer number (14591568).

Almost surely, 287310401 is an apocalyptic number.

It is an amenable number.

87310401 is a deficient number, since it is larger than the sum of its proper divisors (29422143).

87310401 is a wasteful number, since it uses less digits than its factorization.

87310401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79671.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 87310401 is about 9344.0034781672. The cubic root of 87310401 is about 443.6311104894.

Adding to 87310401 its reverse (10401378), we get a palindrome (97711779).

The spelling of 87310401 in words is "eighty-seven million, three hundred ten thousand, four hundred one".

Divisors: 1 3 367 1101 79301 237903 29103467 87310401