Search a number
-
+
190015480 = 2354750387
BaseRepresentation
bin10110101001101…
…10011111111000
3111020112210020101
423110312133320
5342120443410
630504405144
74465050664
oct1324663770
9436483211
10190015480
1198293496
12537767b4
133049c7c5
141b3438a4
1511a35d3a
hexb5367f8

190015480 has 16 divisors (see below), whose sum is σ = 427534920. Its totient is φ = 76006176.

The previous prime is 190015471. The next prime is 190015499. The reversal of 190015480 is 84510091.

It is a happy number.

It is a super-2 number, since 2×1900154802 = 72211765279260800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2375154 + ... + 2375233.

Almost surely, 2190015480 is an apocalyptic number.

190015480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190015480 is an abundant number, since it is smaller than the sum of its proper divisors (237519440).

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

190015480 is a wasteful number, since it uses less digits than its factorization.

190015480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4750398 (or 4750394 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 190015480 is about 13784.6102592710. The cubic root of 190015480 is about 574.9053202647.

The spelling of 190015480 in words is "one hundred ninety million, fifteen thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 4750387 9500774 19001548 23751935 38003096 47503870 95007740 190015480