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975242901 = 3325080967
BaseRepresentation
bin111010001000010…
…000011010010101
32111222002110202110
4322020100122111
53444130233101
6240434501233
733111266523
oct7210203225
92458073673
10975242901
11460554476
12232734819
1312707c709
1493745313
155a940cd6
hex3a210695

975242901 has 4 divisors (see below), whose sum is σ = 1300323872. Its totient is φ = 650161932.

The previous prime is 975242867. The next prime is 975242911. The reversal of 975242901 is 109242579.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 109242579 = 336414193.

It is not a de Polignac number, because 975242901 - 26 = 975242837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 975242901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (975242911) 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, 162540481 + ... + 162540486.

It is an arithmetic number, because the mean of its divisors is an integer number (325080968).

Almost surely, 2975242901 is an apocalyptic number.

It is an amenable number.

975242901 is a deficient number, since it is larger than the sum of its proper divisors (325080971).

975242901 is a wasteful number, since it uses less digits than its factorization.

975242901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325080970.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 975242901 is about 31228.8792786421. The cubic root of 975242901 is about 991.6785797061.

The spelling of 975242901 in words is "nine hundred seventy-five million, two hundred forty-two thousand, nine hundred one".

Divisors: 1 3 325080967 975242901