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100307420 = 2255015371
BaseRepresentation
bin1011111101010…
…01000111011100
320222202010220122
411332221013130
5201134314140
613541534112
72325412313
oct576510734
9228663818
10100307420
11516914a4
1229714338
1317a20705
14d47127a
158c15ab5
hex5fa91dc

100307420 has 12 divisors (see below), whose sum is σ = 210645624. Its totient is φ = 40122960.

The previous prime is 100307419. The next prime is 100307437. The reversal of 100307420 is 24703001.

It is a happy number.

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, 2507666 + ... + 2507705.

It is an arithmetic number, because the mean of its divisors is an integer number (17553802).

Almost surely, 2100307420 is an apocalyptic number.

100307420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100307420 is an abundant number, since it is smaller than the sum of its proper divisors (110338204).

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

100307420 is a wasteful number, since it uses less digits than its factorization.

100307420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5015380 (or 5015378 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 100307420 is about 10015.3592047415. The cubic root of 100307420 is about 464.6340358685.

The spelling of 100307420 in words is "one hundred million, three hundred seven thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 5015371 10030742 20061484 25076855 50153710 100307420