Search a number
-
+
979393069 = 17436719997
BaseRepresentation
bin111010011000000…
…101101000101101
32112020220022201101
4322120011220231
54001211034234
6241103443101
733161463244
oct7230055055
92466808641
10979393069
11462929566
12233bb6491
13127ba3735
149410595b
155aeb0814
hex3a605a2d

979393069 has 16 divisors (see below), whose sum is σ = 1077012288. Its totient is φ = 886862592.

The previous prime is 979393033. The next prime is 979393087. The reversal of 979393069 is 960393979.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-979393069 is a prime.

It is a super-3 number, since 3×9793930693 (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (979393169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38979 + ... + 58975.

It is an arithmetic number, because the mean of its divisors is an integer number (67313268).

Almost surely, 2979393069 is an apocalyptic number.

It is an amenable number.

979393069 is a deficient number, since it is larger than the sum of its proper divisors (97619219).

979393069 is a wasteful number, since it uses less digits than its factorization.

979393069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20124.

The product of its (nonzero) digits is 2480058, while the sum is 55.

The square root of 979393069 is about 31295.2563338280. The cubic root of 979393069 is about 993.0832924571.

The spelling of 979393069 in words is "nine hundred seventy-nine million, three hundred ninety-three thousand, sixty-nine".

Divisors: 1 17 43 67 731 1139 2881 19997 48977 339949 859871 1339799 14617807 22776583 57611357 979393069