Search a number
-
+
190319220 = 223457131291
BaseRepresentation
bin10110101100000…
…00101001110100
3111021010012220000
423112000221310
5342210203340
630515111300
74500454350
oct1326005164
9437105800
10190319220
1198480713
12538a2530
1330577b30
141b3c2460
1511a95d30
hexb580a74

190319220 has 240 divisors, whose sum is σ = 735385728. Its totient is φ = 40124160.

The previous prime is 190319209. The next prime is 190319287. The reversal of 190319220 is 22913091.

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 79 ways as a sum of consecutive naturals, for example, 146775 + ... + 148065.

Almost surely, 2190319220 is an apocalyptic number.

190319220 is a gapful number since it is divisible by the number (10) 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 190319220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (367692864).

190319220 is an abundant number, since it is smaller than the sum of its proper divisors (545066508).

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

190319220 is a wasteful number, since it uses less digits than its factorization.

190319220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332 (or 1321 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 190319220 is about 13795.6232189778. The cubic root of 190319220 is about 575.2114861626.

The spelling of 190319220 in words is "one hundred ninety million, three hundred nineteen thousand, two hundred twenty".