Search a number
-
+
6980042159 = 13815054339
BaseRepresentation
bin1101000000000101…
…01111110110101111
3200000110011212202222
412200002233312233
5103243342322114
63112342305555
7334654244066
oct64002576657
920013155688
106980042159
112a62062a92
1214297282bb
13873138a7c
144a30431dd
152acbc598e
hex1a00afdaf

6980042159 has 4 divisors (see below), whose sum is σ = 6985097880. Its totient is φ = 6974986440.

The previous prime is 6980042149. The next prime is 6980042191. The reversal of 6980042159 is 9512400896.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6980042159 - 28 = 6980041903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6980042149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2525789 + ... + 2528550.

It is an arithmetic number, because the mean of its divisors is an integer number (1746274470).

Almost surely, 26980042159 is an apocalyptic number.

6980042159 is a deficient number, since it is larger than the sum of its proper divisors (5055721).

6980042159 is a wasteful number, since it uses less digits than its factorization.

6980042159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5055720.

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 6980042159 is about 83546.6466053545. The cubic root of 6980042159 is about 1911.1114533770. Note that the first 3 decimals are identical.

The spelling of 6980042159 in words is "six billion, nine hundred eighty million, forty-two thousand, one hundred fifty-nine".

Divisors: 1 1381 5054339 6980042159