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15742307632231 = 103152837938177
BaseRepresentation
bin1110010100010100101010…
…1001111000010001100111
32001201221122111010011210101
43211011022221320101213
54030410221223212411
653251525530204531
73213226026023515
oct345051251702147
961657574104711
1015742307632231
11501a303291494
121922b6ab83747
138a265485701b
143c5d08a414b5
151c4760ad18c1
hexe514aa78467

15742307632231 has 4 divisors (see below), whose sum is σ = 15895145570512. Its totient is φ = 15589469693952.

The previous prime is 15742307632211. The next prime is 15742307632273. The reversal of 15742307632231 is 13223670324751.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 15742307632231 - 227 = 15742173414503 is a prime.

It is a super-2 number, since 2×157423076322312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15742307632211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76418968986 + ... + 76418969191.

It is an arithmetic number, because the mean of its divisors is an integer number (3973786392628).

Almost surely, 215742307632231 is an apocalyptic number.

15742307632231 is a deficient number, since it is larger than the sum of its proper divisors (152837938281).

15742307632231 is a wasteful number, since it uses less digits than its factorization.

15742307632231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152837938280.

The product of its (nonzero) digits is 1270080, while the sum is 46.

Adding to 15742307632231 its reverse (13223670324751), we get a palindrome (28965977956982).

The spelling of 15742307632231 in words is "fifteen trillion, seven hundred forty-two billion, three hundred seven million, six hundred thirty-two thousand, two hundred thirty-one".

Divisors: 1 103 152837938177 15742307632231