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531663038 = 2892986871
BaseRepresentation
bin11111101100001…
…000100010111110
31101001102021120122
4133230020202332
52042101204123
6124431214542
716114030004
oct3754104276
91331367518
10531663038
11253123345
1212a077452
13861c001a
1450878a74
1531a1ebc8
hex1fb088be

531663038 has 8 divisors (see below), whose sum is σ = 806455440. Its totient is φ = 262844560.

The previous prime is 531663029. The next prime is 531663071. The reversal of 531663038 is 830366135.

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

It is a junction number, because it is equal to n+sod(n) for n = 531662989 and 531663007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1493258 + ... + 1493613.

It is an arithmetic number, because the mean of its divisors is an integer number (100806930).

Almost surely, 2531663038 is an apocalyptic number.

531663038 is a deficient number, since it is larger than the sum of its proper divisors (274792402).

531663038 is a wasteful number, since it uses less digits than its factorization.

531663038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2986962.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 531663038 is about 23057.8194545798. The cubic root of 531663038 is about 810.1127912841.

The spelling of 531663038 in words is "five hundred thirty-one million, six hundred sixty-three thousand, thirty-eight".

Divisors: 1 2 89 178 2986871 5973742 265831519 531663038