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190470720 = 263511171061
BaseRepresentation
bin10110101101001…
…01101001000000
3111021101220201010
423112211221000
5342230030340
630522240520
74501655136
oct1326455100
9437356633
10190470720
1198574520
1253956140
13305cba8b
141b421756
1511ac5b80
hexb5a5a40

190470720 has 224 divisors, whose sum is σ = 699186816. Its totient is φ = 43417600.

The previous prime is 190470719. The next prime is 190470733. The reversal of 190470720 is 27074091.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 178990 + ... + 180050.

Almost surely, 2190470720 is an apocalyptic number.

190470720 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 190470720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (349593408).

190470720 is an abundant number, since it is smaller than the sum of its proper divisors (508716096).

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

190470720 is a wasteful number, since it uses less digits than its factorization.

190470720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109 (or 1099 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 190470720 is about 13801.1129985954. The cubic root of 190470720 is about 575.3640744073.

The spelling of 190470720 in words is "one hundred ninety million, four hundred seventy thousand, seven hundred twenty".