Search a number
-
+
6900057072 = 243247917063
BaseRepresentation
bin1100110110100011…
…01000001111110000
3122210212200012212100
412123101220033300
5103112403311242
63100404100400
7332663342316
oct63321501760
918725605770
106900057072
112a209a2007
121406994700
1385c6b240c
144965820b6
152a5b7654c
hex19b4683f0

6900057072 has 30 divisors (see below), whose sum is σ = 19310576792. Its totient is φ = 2300018976.

The previous prime is 6900057061. The next prime is 6900057089. The reversal of 6900057072 is 2707500096.

It is a super-2 number, since 2×69000570722 = 95221575193714426368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23958388 + ... + 23958675.

Almost surely, 26900057072 is an apocalyptic number.

It is an amenable number.

6900057072 is an abundant number, since it is smaller than the sum of its proper divisors (12410519720).

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

6900057072 is a wasteful number, since it uses less digits than its factorization.

6900057072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47917077 (or 47917068 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 6900057072 is about 83066.5821615408. The cubic root of 6900057072 is about 1903.7835108586.

The spelling of 6900057072 in words is "six billion, nine hundred million, fifty-seven thousand, seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 47917063 95834126 143751189 191668252 287502378 383336504 431253567 575004756 766673008 862507134 1150009512 1725014268 2300019024 3450028536 6900057072