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214870464 = 2632477937
BaseRepresentation
bin11001100111010…
…10100111000000
3112222022112212100
430303222213000
5420001323324
633153230400
75216240334
oct1463524700
9488275770
10214870464
1110031a3a6
125bb62400
13356929b3
14207737c4
1513ce54c9
hexccea9c0

214870464 has 84 divisors (see below), whose sum is σ = 629070624. Its totient is φ = 70090752.

The previous prime is 214870459. The next prime is 214870477. The reversal of 214870464 is 464078412.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 23104 + ... + 31040.

It is an arithmetic number, because the mean of its divisors is an integer number (7488936).

Almost surely, 2214870464 is an apocalyptic number.

214870464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 214870464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314535312).

214870464 is an abundant number, since it is smaller than the sum of its proper divisors (414200160).

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

214870464 is a wasteful number, since it uses less digits than its factorization.

214870464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8002 (or 7989 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 214870464 is about 14658.4604921526. The cubic root of 214870464 is about 598.9523049567.

The spelling of 214870464 in words is "two hundred fourteen million, eight hundred seventy thousand, four hundred sixty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 47 48 64 72 94 96 141 144 188 192 282 288 376 423 564 576 752 846 1128 1504 1692 2256 3008 3384 4512 6768 7937 9024 13536 15874 23811 27072 31748 47622 63496 71433 95244 126992 142866 190488 253984 285732 373039 380976 507968 571464 746078 761952 1119117 1142928 1492156 1523904 2238234 2285856 2984312 3357351 4476468 4571712 5968624 6714702 8952936 11937248 13429404 17905872 23874496 26858808 35811744 53717616 71623488 107435232 214870464