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1970748231 = 31096026753
BaseRepresentation
bin111010101110111…
…0011101101000111
312002100022101100020
41311131303231013
513014002420411
6523315550223
766560040444
oct16535635507
95070271306
101970748231
11921488351
1246bbbb373
132553a4b1a
14149a429cb
15b8035606
hex75773b47

1970748231 has 8 divisors (see below), whose sum is σ = 2651771760. Its totient is φ = 1301778432.

The previous prime is 1970748209. The next prime is 1970748287. The reversal of 1970748231 is 1328470791.

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

It is not a de Polignac number, because 1970748231 - 213 = 1970740039 is a prime.

It is a super-2 number, since 2×19707482312 = 7767697179979258722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1970708231) 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, 3013050 + ... + 3013703.

It is an arithmetic number, because the mean of its divisors is an integer number (331471470).

Almost surely, 21970748231 is an apocalyptic number.

1970748231 is a deficient number, since it is larger than the sum of its proper divisors (681023529).

1970748231 is a wasteful number, since it uses less digits than its factorization.

1970748231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6026865.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 1970748231 is about 44393.1101748909. The cubic root of 1970748231 is about 1253.7483711490.

The spelling of 1970748231 in words is "one billion, nine hundred seventy million, seven hundred forty-eight thousand, two hundred thirty-one".

Divisors: 1 3 109 327 6026753 18080259 656916077 1970748231