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632774990 = 2579210139
BaseRepresentation
bin100101101101110…
…110000101001110
31122002200022002202
4211231312011032
52243442244430
6142442321502
721452333021
oct4555660516
91562608082
10632774990
112a5204241
12157ab9292
13a1132993
14600791b8
153a843d45
hex25b7614e

632774990 has 24 divisors (see below), whose sum is σ = 1153708920. Its totient is φ = 249881424.

The previous prime is 632774977. The next prime is 632775029. The reversal of 632774990 is 99477236.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57341 + ... + 67479.

It is an arithmetic number, because the mean of its divisors is an integer number (48071205).

Almost surely, 2632774990 is an apocalyptic number.

632774990 is a deficient number, since it is larger than the sum of its proper divisors (520933930).

632774990 is a wasteful number, since it uses less digits than its factorization.

632774990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10304 (or 10225 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 47.

The square root of 632774990 is about 25155.0191810700. The cubic root of 632774990 is about 858.5187183280.

The spelling of 632774990 in words is "six hundred thirty-two million, seven hundred seventy-four thousand, nine hundred ninety".

Divisors: 1 2 5 10 79 158 395 790 6241 10139 12482 20278 31205 50695 62410 101390 800981 1601962 4004905 8009810 63277499 126554998 316387495 632774990