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48990100 = 2252489901
BaseRepresentation
bin1011101011100…
…0011110010100
310102011221210011
42322320132110
5100020140400
64510010004
71133260165
oct272703624
9112157704
1048990100
1125720a95
12144a6904
13a1c3833
14671376c
15447a8ba
hex2eb8794

48990100 has 18 divisors (see below), whose sum is σ = 106308734. Its totient is φ = 19596000.

The previous prime is 48990091. The next prime is 48990101. The reversal of 48990100 is 109984.

It can be written as a sum of positive squares in 3 ways, for example, as 492804 + 48497296 = 702^2 + 6964^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48990101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 244851 + ... + 245050.

Almost surely, 248990100 is an apocalyptic number.

It is an amenable number.

48990100 is an abundant number, since it is smaller than the sum of its proper divisors (57318634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

48990100 is a wasteful number, since it uses less digits than its factorization.

48990100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489915 (or 489908 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 48990100 is about 6999.2928214213. The cubic root of 48990100 is about 365.9059250386.

The spelling of 48990100 in words is "forty-eight million, nine hundred ninety thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 489901 979802 1959604 2449505 4899010 9798020 12247525 24495050 48990100