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642480058 = 21164745137
BaseRepresentation
bin100110010010110…
…111011110111010
31122202221100221201
4212102313132322
52303433330213
6143430324414
721630663463
oct4622673672
91582840851
10642480058
112aa732860
1215b1b970a
13a315021c
1461483d6a
153b60e6dd
hex264b77ba

642480058 has 16 divisors (see below), whose sum is σ = 1052979264. Its totient is φ = 291578560.

The previous prime is 642480043. The next prime is 642480073. The reversal of 642480058 is 850084246.

It is an interprime number because it is at equal distance from previous prime (642480043) and next prime (642480073).

It is a junction number, because it is equal to n+sod(n) for n = 642479999 and 642480026.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8335 + ... + 36802.

It is an arithmetic number, because the mean of its divisors is an integer number (65811204).

Almost surely, 2642480058 is an apocalyptic number.

642480058 is a deficient number, since it is larger than the sum of its proper divisors (410499206).

642480058 is a wasteful number, since it uses less digits than its factorization.

642480058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45797.

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 642480058 is about 25347.1903373924. The cubic root of 642480058 is about 862.8855918697.

The spelling of 642480058 in words is "six hundred forty-two million, four hundred eighty thousand, fifty-eight".

Divisors: 1 2 11 22 647 1294 7117 14234 45137 90274 496507 993014 29203639 58407278 321240029 642480058