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100240415 = 51117107209
BaseRepresentation
bin1011111100110…
…00110000011111
320222121201222222
411332120300133
5201130143130
613540255555
72325013052
oct576306037
9228551888
10100240415
1151646120
12296a15bb
13179c9072
14d454a99
158c00ce5
hex5f98c1f

100240415 has 16 divisors (see below), whose sum is σ = 138944160. Its totient is φ = 68613120.

The previous prime is 100240397. The next prime is 100240421. The reversal of 100240415 is 514042001.

It is not a de Polignac number, because 100240415 - 28 = 100240159 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 100240393 and 100240402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52670 + ... + 54539.

It is an arithmetic number, because the mean of its divisors is an integer number (8684010).

Almost surely, 2100240415 is an apocalyptic number.

100240415 is a deficient number, since it is larger than the sum of its proper divisors (38703745).

100240415 is a wasteful number, since it uses less digits than its factorization.

100240415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107242.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 100240415 is about 10012.0135337503. The cubic root of 100240415 is about 464.5305548620.

Adding to 100240415 its reverse (514042001), we get a palindrome (614282416).

The spelling of 100240415 in words is "one hundred million, two hundred forty thousand, four hundred fifteen".

Divisors: 1 5 11 17 55 85 187 935 107209 536045 1179299 1822553 5896495 9112765 20048083 100240415