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190055214 = 23319712609
BaseRepresentation
bin10110101010000…
…00001100101110
3111020121210202000
423111000030232
5342123231324
630505313130
74465304556
oct1325001456
9436553660
10190055214
1198310328
12537957a6
13304b490b
141b354166
1511a429c9
hexb54032e

190055214 has 64 divisors (see below), whose sum is σ = 451008000. Its totient is φ = 59149440.

The previous prime is 190055209. The next prime is 190055221. The reversal of 190055214 is 412550091.

It is a super-2 number, since 2×1900552142 = 72241968737171592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71542 + ... + 74150.

It is an arithmetic number, because the mean of its divisors is an integer number (7047000).

Almost surely, 2190055214 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190055214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225504000).

190055214 is an abundant number, since it is smaller than the sum of its proper divisors (260952786).

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

190055214 is a wasteful number, since it uses less digits than its factorization.

190055214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2710 (or 2704 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 190055214 is about 13786.0514288900. The cubic root of 190055214 is about 574.9453901508.

The spelling of 190055214 in words is "one hundred ninety million, fifty-five thousand, two hundred fourteen".

Divisors: 1 2 3 6 9 18 19 27 38 54 57 71 114 142 171 213 342 426 513 639 1026 1278 1349 1917 2609 2698 3834 4047 5218 7827 8094 12141 15654 23481 24282 36423 46962 49571 70443 72846 99142 140886 148713 185239 297426 370478 446139 555717 892278 1111434 1338417 1667151 2676834 3334302 3519541 5001453 7039082 10002906 10558623 21117246 31675869 63351738 95027607 190055214