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961253061 = 3407978553
BaseRepresentation
bin111001010010111…
…000111011000101
32110222202201022020
4321102320323011
53432040044221
6235214553353
732551342026
oct7122707305
92428681266
10961253061
1145366971a
12229b08859
131241c1ac2
1491942c4d
15595caac6
hex394b8ec5

961253061 has 8 divisors (see below), whose sum is σ = 1282001280. Its totient is φ = 640670112.

The previous prime is 961253047. The next prime is 961253101. The reversal of 961253061 is 160352169.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 961253061 - 29 = 961252549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961253021) 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, 27040 + ... + 51513.

It is an arithmetic number, because the mean of its divisors is an integer number (160250160).

Almost surely, 2961253061 is an apocalyptic number.

It is an amenable number.

961253061 is a deficient number, since it is larger than the sum of its proper divisors (320748219).

961253061 is a wasteful number, since it uses less digits than its factorization.

961253061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82635.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 961253061 is about 31004.0813603629. The cubic root of 961253061 is about 986.9138534232.

The spelling of 961253061 in words is "nine hundred sixty-one million, two hundred fifty-three thousand, sixty-one".

Divisors: 1 3 4079 12237 78553 235659 320417687 961253061