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190797012 = 223371937359
BaseRepresentation
bin10110101111101…
…01010011010100
3111022000111022000
423113311103110
5342321001022
630533235300
74504514340
oct1327652324
9438014260
10190797012
119877768a
1253a92b30
13306b4453
141b4a8620
1511b3c6ac
hexb5f54d4

190797012 has 192 divisors, whose sum is σ = 612864000. Its totient is φ = 50108544.

The previous prime is 190796981. The next prime is 190797037. The reversal of 190797012 is 210797091.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 531289 + ... + 531647.

It is an arithmetic number, because the mean of its divisors is an integer number (3192000).

Almost surely, 2190797012 is an apocalyptic number.

190797012 is a gapful number since it is divisible by the number (12) 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 190797012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306432000).

190797012 is an abundant number, since it is smaller than the sum of its proper divisors (422066988).

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

190797012 is a wasteful number, since it uses less digits than its factorization.

190797012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435 (or 427 counting only the distinct ones).

The product of its (nonzero) digits is 7938, while the sum is 36.

The square root of 190797012 is about 13812.9291607537. The cubic root of 190797012 is about 575.6924356267.

The spelling of 190797012 in words is "one hundred ninety million, seven hundred ninety-seven thousand, twelve".