Search a number
-
+
1970690916 = 223424138723
BaseRepresentation
bin111010101110110…
…0101101101100100
312002100012110201110
41311131211231210
513013444102131
6523314425020
766556411365
oct16535455544
95070173643
101970690916
11921449287
1246bb92170
132553849cc
14149a29b6c
15b8023646
hex75765b64

1970690916 has 24 divisors (see below), whose sum is σ = 4599481824. Its totient is φ = 656725120.

The previous prime is 1970690893. The next prime is 1970690941. The reversal of 1970690916 is 6190960791.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31531 + ... + 70253.

It is an arithmetic number, because the mean of its divisors is an integer number (191645076).

Almost surely, 21970690916 is an apocalyptic number.

It is an amenable number.

1970690916 is an abundant number, since it is smaller than the sum of its proper divisors (2628790908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1970690916 is a wasteful number, since it uses less digits than its factorization.

1970690916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42971 (or 42969 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 48.

The square root of 1970690916 is about 44392.4646308357. The cubic root of 1970690916 is about 1253.7362168339.

The spelling of 1970690916 in words is "one billion, nine hundred seventy million, six hundred ninety thousand, nine hundred sixteen".

Divisors: 1 2 3 4 6 12 4241 8482 12723 16964 25446 38723 50892 77446 116169 154892 232338 464676 164224243 328448486 492672729 656896972 985345458 1970690916