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101050420 = 2255052521
BaseRepresentation
bin1100000010111…
…10100000110100
321001010220010011
412001132200310
5201332103140
614005510004
72334625432
oct601364064
9231126104
10101050420
1152049749
1229a12304
1317c20963
14d5c5d52
158d10cea
hex605e834

101050420 has 12 divisors (see below), whose sum is σ = 212205924. Its totient is φ = 40420160.

The previous prime is 101050393. The next prime is 101050427. The reversal of 101050420 is 24050101.

It can be written as a sum of positive squares in 2 ways, for example, as 62062884 + 38987536 = 7878^2 + 6244^2 .

It is a super-2 number, since 2×1010504202 = 20422374764352800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 101050420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101050427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2526241 + ... + 2526280.

It is an arithmetic number, because the mean of its divisors is an integer number (17683827).

Almost surely, 2101050420 is an apocalyptic number.

101050420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101050420 is an abundant number, since it is smaller than the sum of its proper divisors (111155504).

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

101050420 is a wasteful number, since it uses less digits than its factorization.

101050420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5052530 (or 5052528 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 101050420 is about 10052.3837968912. The cubic root of 101050420 is about 465.7784317566.

The spelling of 101050420 in words is "one hundred one million, fifty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 5052521 10105042 20210084 25262605 50525210 101050420