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214214155420 = 22534730866593
BaseRepresentation
bin1100011110000000101…
…0001001110010011100
3202110220221201121002011
43013200022021302130
512002202310433140
6242224132441004
721322266164236
oct3074012116234
9673827647064
10214214155420
1182936340591
1235623a79164
131727b100425
14a521bc3256
15588b2aacea
hex31e0289c9c

214214155420 has 24 divisors (see below), whose sum is σ = 451146137904. Its totient is φ = 85438726656.

The previous prime is 214214155411. The next prime is 214214155439. The reversal of 214214155420 is 24551412412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15426357 + ... + 15440236.

It is an arithmetic number, because the mean of its divisors is an integer number (18797755746).

Almost surely, 2214214155420 is an apocalyptic number.

214214155420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214214155420 is an abundant number, since it is smaller than the sum of its proper divisors (236931982484).

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

214214155420 is a wasteful number, since it uses less digits than its factorization.

214214155420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30866949 (or 30866947 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

Adding to 214214155420 its reverse (24551412412), we get a palindrome (238765567832).

The spelling of 214214155420 in words is "two hundred fourteen billion, two hundred fourteen million, one hundred fifty-five thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 347 694 1388 1735 3470 6940 30866593 61733186 123466372 154332965 308665930 617331860 10710707771 21421415542 42842831084 53553538855 107107077710 214214155420