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100642411 = 1923230303
BaseRepresentation
bin1011111111110…
…10111001101011
321000101011102201
411333322321223
5201231024121
613553041031
72331306052
oct577727153
9230334381
10100642411
11518a0151
1229856177
1317b0a02c
14d51b399
158c7ee91
hex5ffae6b

100642411 has 8 divisors (see below), whose sum is σ = 110545920. Its totient is φ = 91199592.

The previous prime is 100642387. The next prime is 100642471. The reversal of 100642411 is 114246001.

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

It is a cyclic number.

It is not a de Polignac number, because 100642411 - 221 = 98545259 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100642471) 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, 114715 + ... + 115588.

It is an arithmetic number, because the mean of its divisors is an integer number (13818240).

Almost surely, 2100642411 is an apocalyptic number.

100642411 is a deficient number, since it is larger than the sum of its proper divisors (9903509).

100642411 is a wasteful number, since it uses less digits than its factorization.

100642411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230345.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 100642411 is about 10032.0691285497. The cubic root of 100642411 is about 465.1506984485.

Adding to 100642411 its reverse (114246001), we get a palindrome (214888412).

The spelling of 100642411 in words is "one hundred million, six hundred forty-two thousand, four hundred eleven".

Divisors: 1 19 23 437 230303 4375757 5296969 100642411