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20276120 = 235506903
BaseRepresentation
bin100110101011…
…0001110011000
31102011010121102
41031112032120
520142313440
62002330532
7334226024
oct115261630
942133542
1020276120
1110499827
126959a48
13427c007
14299b384
151ba7b15
hex1356398

20276120 has 16 divisors (see below), whose sum is σ = 45621360. Its totient is φ = 8110432.

The previous prime is 20276107. The next prime is 20276131. The reversal of 20276120 is 2167202.

It is a super-2 number, since 2×202761202 = 822242084508800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20276092 and 20276101.

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, 253412 + ... + 253491.

It is an arithmetic number, because the mean of its divisors is an integer number (2851335).

Almost surely, 220276120 is an apocalyptic number.

20276120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20276120 is an abundant number, since it is smaller than the sum of its proper divisors (25345240).

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

20276120 is a wasteful number, since it uses less digits than its factorization.

20276120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506914 (or 506910 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 20276120 is about 4502.9012869482. The cubic root of 20276120 is about 272.6852316341.

The spelling of 20276120 in words is "twenty million, two hundred seventy-six thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 506903 1013806 2027612 2534515 4055224 5069030 10138060 20276120