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554613961 = 11157321143
BaseRepresentation
bin100001000011101…
…011110011001001
31102122121022022211
4201003223303021
52113440121321
6131011145121
716513066216
oct4103536311
91378538284
10554613961
11265079750
121358a51a1
138ab97655
1453930b0d
1533a550e1
hex210ebcc9

554613961 has 8 divisors (see below), whose sum is σ = 608889024. Its totient is φ = 500981520.

The previous prime is 554613947. The next prime is 554613977. The reversal of 554613961 is 169316455.

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 554613961 - 27 = 554613833 is a prime.

It is a super-2 number, since 2×5546139612 = 615193291472219042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (554613991) 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, 158845 + ... + 162298.

It is an arithmetic number, because the mean of its divisors is an integer number (76111128).

Almost surely, 2554613961 is an apocalyptic number.

It is an amenable number.

554613961 is a deficient number, since it is larger than the sum of its proper divisors (54275063).

554613961 is a wasteful number, since it uses less digits than its factorization.

554613961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321311.

The product of its digits is 97200, while the sum is 40.

The square root of 554613961 is about 23550.2433320762. The cubic root of 554613961 is about 821.6059944384.

The spelling of 554613961 in words is "five hundred fifty-four million, six hundred thirteen thousand, nine hundred sixty-one".

Divisors: 1 11 157 1727 321143 3532573 50419451 554613961