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100440669 = 3719213249
BaseRepresentation
bin1011111110010…
…01101001011101
320222222220200210
411333021221131
5201203100134
613544443033
72326505640
oct577115135
9228886623
10100440669
115177261a
1229779479
1317a69264
14d4a7a57
158c402e9
hex5fc9a5d

100440669 has 24 divisors (see below), whose sum is σ = 161544000. Its totient is φ = 54369792.

The previous prime is 100440667. The next prime is 100440677. The reversal of 100440669 is 966044001.

It is not a de Polignac number, because 100440669 - 21 = 100440667 is a prime.

It is a super-2 number, since 2×1004406692 = 20176655978335122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100440667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 957 + ... + 14205.

It is an arithmetic number, because the mean of its divisors is an integer number (6731000).

Almost surely, 2100440669 is an apocalyptic number.

100440669 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

100440669 is a deficient number, since it is larger than the sum of its proper divisors (61103331).

100440669 is a wasteful number, since it uses less digits than its factorization.

100440669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13297 (or 13278 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 100440669 is about 10022.0092296904. The cubic root of 100440669 is about 464.8396857466.

The spelling of 100440669 in words is "one hundred million, four hundred forty thousand, six hundred sixty-nine".

Divisors: 1 3 7 19 21 57 133 361 399 1083 2527 7581 13249 39747 92743 251731 278229 755193 1762117 4782889 5286351 14348667 33480223 100440669