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100479487 = 8997103113
BaseRepresentation
bin1011111110100…
…11000111111111
321000001212221111
411333103013333
5201210320422
613545342451
72330030053
oct577230777
9230055844
10100479487
11517997a9
1229797a27
1317a80b24
14d4b7c63
158c4ba77
hex5fd31ff

100479487 has 16 divisors (see below), whose sum is σ = 104569920. Its totient is φ = 96509952.

The previous prime is 100479481. The next prime is 100479493. The reversal of 100479487 is 784974001.

It is an interprime number because it is at equal distance from previous prime (100479481) and next prime (100479493).

It is a cyclic number.

It is not a de Polignac number, because 100479487 - 27 = 100479359 is a prime.

It is a super-2 number, since 2×1004794872 = 20192254615566338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100479481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 889143 + ... + 889255.

It is an arithmetic number, because the mean of its divisors is an integer number (6535620).

Almost surely, 2100479487 is an apocalyptic number.

100479487 is a deficient number, since it is larger than the sum of its proper divisors (4090433).

100479487 is a wasteful number, since it uses less digits than its factorization.

100479487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 100479487 is about 10023.9456802199. The cubic root of 100479487 is about 464.8995613032.

The spelling of 100479487 in words is "one hundred million, four hundred seventy-nine thousand, four hundred eighty-seven".

Divisors: 1 89 97 103 113 8633 9167 9991 10057 10961 11639 889199 975529 1035871 1128983 100479487