Search a number
-
+
157157157143 = 786783258703
BaseRepresentation
bin1001001001011101001…
…0111110100100010111
3120000122112220202201202
42102113102332210113
510033324213012033
6200110315143115
714232333536420
oct2222722764427
9500575822652
10157157157143
1160717133258
122655b744a9b
1311a872bbb9c
14786c13a647
15414c0dd8e8
hex24974be917

157157157143 has 8 divisors (see below), whose sum is σ = 179610943488. Its totient is φ = 134704061784.

The previous prime is 157157157127. The next prime is 157157157151. The reversal of 157157157143 is 341751751751.

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 157157157143 - 24 = 157157157127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157157157163) 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, 478130 + ... + 736832.

It is an arithmetic number, because the mean of its divisors is an integer number (22451367936).

Almost surely, 2157157157143 is an apocalyptic number.

157157157143 is a deficient number, since it is larger than the sum of its proper divisors (22453786345).

157157157143 is an equidigital number, since it uses as much as digits as its factorization.

157157157143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345493.

The product of its digits is 514500, while the sum is 47.

The spelling of 157157157143 in words is "one hundred fifty-seven billion, one hundred fifty-seven million, one hundred fifty-seven thousand, one hundred forty-three".

Divisors: 1 7 86783 258703 607481 1810921 22451022449 157157157143