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61672283903 = 3117411142693
BaseRepresentation
bin111001011011111101…
…000101111011111111
312220012001021122000002
4321123331011323333
52002301101041103
644155403024515
74312203522656
oct713375057377
9186161248002
1061672283903
112417843a77a
12bb51b0b13b
135a7b0511a9
142db0a0219d
15190e47e488
hexe5bf45eff

61672283903 has 8 divisors (see below), whose sum is σ = 63698334336. Its totient is φ = 59648522400.

The previous prime is 61672283899. The next prime is 61672283917. The reversal of 61672283903 is 30938227616.

It is a happy number.

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 61672283903 - 22 = 61672283899 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 (61672283983) 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, 517376 + ... + 625317.

It is an arithmetic number, because the mean of its divisors is an integer number (7962291792).

Almost surely, 261672283903 is an apocalyptic number.

61672283903 is a deficient number, since it is larger than the sum of its proper divisors (2026050433).

61672283903 is a wasteful number, since it uses less digits than its factorization.

61672283903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144465.

The product of its (nonzero) digits is 653184, while the sum is 47.

The spelling of 61672283903 in words is "sixty-one billion, six hundred seventy-two million, two hundred eighty-three thousand, nine hundred three".

Divisors: 1 31 1741 53971 1142693 35423483 1989428513 61672283903