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428977298 = 21271688887
BaseRepresentation
bin11001100100011…
…010110010010010
31002220012022020002
4121210122302102
51334304233143
6110322250002
713426150451
oct3144326222
91086168202
10428977298
11200167aa2
12bb7b6902
136ab48c29
1440d88b98
15279d95b8
hex1991ac92

428977298 has 8 divisors (see below), whose sum is σ = 648532992. Its totient is φ = 212799636.

The previous prime is 428977291. The next prime is 428977313. The reversal of 428977298 is 892779824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (428977291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 844190 + ... + 844697.

It is an arithmetic number, because the mean of its divisors is an integer number (81066624).

Almost surely, 2428977298 is an apocalyptic number.

428977298 is a deficient number, since it is larger than the sum of its proper divisors (219555694).

428977298 is a wasteful number, since it uses less digits than its factorization.

428977298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1689016.

The product of its digits is 4064256, while the sum is 56.

The square root of 428977298 is about 20711.7671385133. The cubic root of 428977298 is about 754.1853693167.

The spelling of 428977298 in words is "four hundred twenty-eight million, nine hundred seventy-seven thousand, two hundred ninety-eight".

Divisors: 1 2 127 254 1688887 3377774 214488649 428977298