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870491461 = 7641194003
BaseRepresentation
bin110011111000101…
…010010101000101
32020122222112210111
4303320222111011
53240321211321
6222213353021
730400024660
oct6370522505
92218875714
10870491461
11407408134
12203638771
1310b464308
14838786d7
155164d5e1
hex33e2a545

870491461 has 8 divisors (see below), whose sum is σ = 996404544. Its totient is φ = 744967680.

The previous prime is 870491449. The next prime is 870491473. The reversal of 870491461 is 164194078.

870491461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (870491449) and next prime (870491473).

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

It is a cyclic number.

It is not a de Polignac number, because 870491461 - 29 = 870490949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870491161) 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, 92515 + ... + 101488.

It is an arithmetic number, because the mean of its divisors is an integer number (124550568).

Almost surely, 2870491461 is an apocalyptic number.

It is an amenable number.

870491461 is a deficient number, since it is larger than the sum of its proper divisors (125913083).

870491461 is a wasteful number, since it uses less digits than its factorization.

870491461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194651.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 870491461 is about 29504.0922754793. The cubic root of 870491461 is about 954.8199951298.

The spelling of 870491461 in words is "eight hundred seventy million, four hundred ninety-one thousand, four hundred sixty-one".

Divisors: 1 7 641 4487 194003 1358021 124355923 870491461