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100470421 = 839291303
BaseRepresentation
bin1011111110100…
…00111010010101
321000001102111201
411333100322111
5201210023141
613545232501
72326661452
oct577207225
9230042451
10100470421
1151792a07
1229792731
1317a7996c
14d4b4829
158c49031
hex5fd0e95

100470421 has 8 divisors (see below), whose sum is σ = 101868480. Its totient is φ = 99076992.

The previous prime is 100470379. The next prime is 100470431. The reversal of 100470421 is 124074001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-100470421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100470431) 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, 76456 + ... + 77758.

It is an arithmetic number, because the mean of its divisors is an integer number (12733560).

Almost surely, 2100470421 is an apocalyptic number.

It is an amenable number.

100470421 is a deficient number, since it is larger than the sum of its proper divisors (1398059).

100470421 is an equidigital number, since it uses as much as digits as its factorization.

100470421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2315.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 100470421 is about 10023.4934528836. The cubic root of 100470421 is about 464.8855786608.

The spelling of 100470421 in words is "one hundred million, four hundred seventy thousand, four hundred twenty-one".

Divisors: 1 83 929 1303 77107 108149 1210487 100470421