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214700388 = 22372555957
BaseRepresentation
bin11001100110000…
…01000101100100
3112221222220120020
430303001011210
5414430403023
633145435140
75214631440
oct1463010544
9487886506
10214700388
11100213641
125ba9bab0
1335633466
142072b820
1513caede3
hexccc1164

214700388 has 24 divisors (see below), whose sum is σ = 572534592. Its totient is φ = 61342944.

The previous prime is 214700363. The next prime is 214700401. The reversal of 214700388 is 883007412.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1277895 + ... + 1278062.

It is an arithmetic number, because the mean of its divisors is an integer number (23855608).

Almost surely, 2214700388 is an apocalyptic number.

214700388 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

214700388 is an abundant number, since it is smaller than the sum of its proper divisors (357834204).

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

214700388 is a wasteful number, since it uses less digits than its factorization.

214700388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2555971 (or 2555969 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 214700388 is about 14652.6580523808. The cubic root of 214700388 is about 598.7942340596.

The spelling of 214700388 in words is "two hundred fourteen million, seven hundred thousand, three hundred eighty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 2555957 5111914 7667871 10223828 15335742 17891699 30671484 35783398 53675097 71566796 107350194 214700388