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1040142215 = 5740972661
BaseRepresentation
bin111101111111110…
…100111110000111
32200111012200212202
4331333310332013
54112234022330
6251113505115
734530030410
oct7577647607
92614180782
101040142215
11494151272
1225041219b
13137653688
149c1da807
15614b0445
hex3dff4f87

1040142215 has 16 divisors (see below), whose sum is σ = 1429988160. Its totient is φ = 711486720.

The previous prime is 1040142167. The next prime is 1040142239. The reversal of 1040142215 is 5122410401.

It is a happy number.

It is not a de Polignac number, because 1040142215 - 214 = 1040125831 is a prime.

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, 22016 + ... + 50645.

It is an arithmetic number, because the mean of its divisors is an integer number (89374260).

Almost surely, 21040142215 is an apocalyptic number.

1040142215 is a deficient number, since it is larger than the sum of its proper divisors (389845945).

1040142215 is an equidigital number, since it uses as much as digits as its factorization.

1040142215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73082.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1040142215 is about 32251.2358677927. The cubic root of 1040142215 is about 1013.2055832745.

Adding to 1040142215 its reverse (5122410401), we get a palindrome (6162552616).

The spelling of 1040142215 in words is "one billion, forty million, one hundred forty-two thousand, two hundred fifteen".

Divisors: 1 5 7 35 409 2045 2863 14315 72661 363305 508627 2543135 29718349 148591745 208028443 1040142215