Search a number
-
+
357211701845 = 5137219512
BaseRepresentation
bin1010011001010110111…
…10100000001001010101
31021011000200211121111022
411030223132200021111
521323032143424340
6432033434250525
734544016240035
oct5145336401125
91234020747438
10357211701845
11128546769719
1259291586a45
13278b99c7c1b
14134095798c5
15945a2393b5
hex532b7a0255

357211701845 has 18 divisors (see below), whose sum is σ = 432027181026. Its totient is φ = 283538049600.

The previous prime is 357211701817. The next prime is 357211701851. The reversal of 357211701845 is 548107112753.

It can be written as a sum of positive squares in 3 ways, for example, as 56654472484 + 300557229361 = 238022^2 + 548231^2 .

It is not a de Polignac number, because 357211701845 - 238 = 82333794901 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 357211701796 and 357211701805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 183090620 + ... + 183092570.

It is an arithmetic number, because the mean of its divisors is an integer number (24001510057).

Almost surely, 2357211701845 is an apocalyptic number.

It is an amenable number.

357211701845 is a deficient number, since it is larger than the sum of its proper divisors (74815479181).

357211701845 is an frugal number, since it uses more digits than its factorization.

357211701845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4181 (or 2093 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 44.

The spelling of 357211701845 in words is "three hundred fifty-seven billion, two hundred eleven million, seven hundred one thousand, eight hundred forty-five".

Divisors: 1 5 137 685 1951 9755 18769 93845 267287 1336435 3806401 19032005 36618319 183091595 521476937 2607384685 71442340369 357211701845