Search a number
-
+
2420152557 = 31316158149
BaseRepresentation
bin1001000001000000…
…1001100011101101
320020122221111011220
42100100021203231
514424024340212
61040052133553
7113654646234
oct22020114355
96218844156
102420152557
111032127489
125766072b9
132c7523644
1418d5c7b1b
15e270738c
hex904098ed

2420152557 has 8 divisors (see below), whose sum is σ = 3251503200. Its totient is φ = 1601118480.

The previous prime is 2420152543. The next prime is 2420152561. The reversal of 2420152557 is 7552510242.

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

It is not a de Polignac number, because 2420152557 - 210 = 2420151533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2420152577) 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, 3078682 + ... + 3079467.

It is an arithmetic number, because the mean of its divisors is an integer number (406437900).

Almost surely, 22420152557 is an apocalyptic number.

It is an amenable number.

2420152557 is a deficient number, since it is larger than the sum of its proper divisors (831350643).

2420152557 is a wasteful number, since it uses less digits than its factorization.

2420152557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6158283.

The product of its (nonzero) digits is 28000, while the sum is 33.

The square root of 2420152557 is about 49195.0460615701. The cubic root of 2420152557 is about 1342.6029003310.

Adding to 2420152557 its reverse (7552510242), we get a palindrome (9972662799).

The spelling of 2420152557 in words is "two billion, four hundred twenty million, one hundred fifty-two thousand, five hundred fifty-seven".

Divisors: 1 3 131 393 6158149 18474447 806717519 2420152557