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67248420 = 22351120807
BaseRepresentation
bin1000000001000…
…10000100100100
311200112120111020
410000202010210
5114203422140
610401211140
71444413351
oct400420444
9150476436
1067248420
1134a61808
121a630ab0
1310c17285
148d07628
155d856d0
hex4022124

67248420 has 24 divisors (see below), whose sum is σ = 188295744. Its totient is φ = 17932896.

The previous prime is 67248409. The next prime is 67248427. The reversal of 67248420 is 2484276.

It is not an unprimeable number, because it can be changed into a prime (67248427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 560344 + ... + 560463.

It is an arithmetic number, because the mean of its divisors is an integer number (7845656).

Almost surely, 267248420 is an apocalyptic number.

67248420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

67248420 is an abundant number, since it is smaller than the sum of its proper divisors (121047324).

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

67248420 is a wasteful number, since it uses less digits than its factorization.

67248420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120819 (or 1120817 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 67248420 is about 8200.5133985623. The cubic root of 67248420 is about 406.6561659327.

The spelling of 67248420 in words is "sixty-seven million, two hundred forty-eight thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1120807 2241614 3362421 4483228 5604035 6724842 11208070 13449684 16812105 22416140 33624210 67248420