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190029390 = 23556311251
BaseRepresentation
bin10110101001110…
…01111001001110
3111020120111022120
423110321321032
5342121420030
630504553410
74465136355
oct1324717116
9436514276
10190029390
11982a2991
1253782866
13304a5c35
141b34899c
1511a3a010
hexb539e4e

190029390 has 32 divisors (see below), whose sum is σ = 456921216. Its totient is φ = 50580000.

The previous prime is 190029377. The next prime is 190029403. The reversal of 190029390 is 93920091.

It is an interprime number because it is at equal distance from previous prime (190029377) and next prime (190029403).

It is a super-2 number, since 2×1900293902 = 72222338127544200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11265 + ... + 22515.

It is an arithmetic number, because the mean of its divisors is an integer number (14278788).

Almost surely, 2190029390 is an apocalyptic number.

190029390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190029390 is an abundant number, since it is smaller than the sum of its proper divisors (266891826).

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

190029390 is a wasteful number, since it uses less digits than its factorization.

190029390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11824.

The product of its (nonzero) digits is 4374, while the sum is 33.

The square root of 190029390 is about 13785.1147982162. The cubic root of 190029390 is about 574.9193484864.

The spelling of 190029390 in words is "one hundred ninety million, twenty-nine thousand, three hundred ninety".