Search a number
-
+
1979914130 = 25197991413
BaseRepresentation
bin111011000000011…
…0001011110010010
312002222120001120222
41312000301132102
513023324223010
6524244233042
7100030664255
oct16600613622
95088501528
101979914130
11926678877
1247309b782
13257263b2c
1414ad4b09c
15b8c46355
hex76031792

1979914130 has 8 divisors (see below), whose sum is σ = 3563845452. Its totient is φ = 791965648.

The previous prime is 1979914093. The next prime is 1979914159. The reversal of 1979914130 is 314199791.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1924664641 + 55249489 = 43871^2 + 7433^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98995697 + ... + 98995716.

Almost surely, 21979914130 is an apocalyptic number.

1979914130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1979914130 is a deficient number, since it is larger than the sum of its proper divisors (1583931322).

1979914130 is a wasteful number, since it uses less digits than its factorization.

1979914130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197991420.

The product of its (nonzero) digits is 61236, while the sum is 44.

The square root of 1979914130 is about 44496.2260197424. The cubic root of 1979914130 is about 1255.6890825902.

The spelling of 1979914130 in words is "one billion, nine hundred seventy-nine million, nine hundred fourteen thousand, one hundred thirty".

Divisors: 1 2 5 10 197991413 395982826 989957065 1979914130