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6906970040 = 235457377843
BaseRepresentation
bin1100110111010111…
…11111111110111000
3122211100200102200012
412123223333332320
5103121141020130
63101212201052
7333106163615
oct63353777670
918740612605
106906970040
112a24893903
121409169188
13860c62b29
1449746150c
152a658e995
hex19bafffb8

6906970040 has 32 divisors (see below), whose sum is σ = 15574729680. Its totient is φ = 2756735232.

The previous prime is 6906970039. The next prime is 6906970043. The reversal of 6906970040 is 400796096.

It is a self number, because there is not a number n which added to its sum of digits gives 6906970040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6906970043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170642 + ... + 207201.

Almost surely, 26906970040 is an apocalyptic number.

It is an amenable number.

6906970040 is an abundant number, since it is smaller than the sum of its proper divisors (8667759640).

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

6906970040 is a wasteful number, since it uses less digits than its factorization.

6906970040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378311 (or 378307 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 6906970040 is about 83108.1827499555. The cubic root of 6906970040 is about 1904.4190805675.

The spelling of 6906970040 in words is "six billion, nine hundred six million, nine hundred seventy thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 457 914 1828 2285 3656 4570 9140 18280 377843 755686 1511372 1889215 3022744 3778430 7556860 15113720 172674251 345348502 690697004 863371255 1381394008 1726742510 3453485020 6906970040