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869065480 = 23539315527
BaseRepresentation
bin110011110011001…
…110001100001000
32020120022002201101
4303303032030020
53234440043410
6222123031144
730351635413
oct6363161410
92216262641
10869065480
11406623838
1220306b4b4
1310b08523a
14835c6b7a
155146ad3a
hex33cce308

869065480 has 32 divisors (see below), whose sum is σ = 1956248640. Its totient is φ = 347474880.

The previous prime is 869065469. The next prime is 869065481. The reversal of 869065480 is 84560968.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 869065480.

It is not an unprimeable number, because it can be changed into a prime (869065481) 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, 154477 + ... + 160003.

It is an arithmetic number, because the mean of its divisors is an integer number (61132770).

Almost surely, 2869065480 is an apocalyptic number.

It is an amenable number.

869065480 is an abundant number, since it is smaller than the sum of its proper divisors (1087183160).

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

869065480 is a wasteful number, since it uses less digits than its factorization.

869065480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9469 (or 9465 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 869065480 is about 29479.9165534776. The cubic root of 869065480 is about 954.2983360520.

The spelling of 869065480 in words is "eight hundred sixty-nine million, sixty-five thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 3931 5527 7862 11054 15724 19655 22108 27635 31448 39310 44216 55270 78620 110540 157240 221080 21726637 43453274 86906548 108633185 173813096 217266370 434532740 869065480