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197893080 = 23325711359
BaseRepresentation
bin10111100101110…
…01101111011000
3111210101000021100
423302321233120
5401130034310
631345311400
74622030520
oct1362715730
9453330240
10197893080
11a1784000
1256335560
1331cca2c8
141c3d4680
151258eec0
hexbcb9bd8

197893080 has 384 divisors, whose sum is σ = 822182400. Its totient is φ = 40423680.

The previous prime is 197893067. The next prime is 197893093. The reversal of 197893080 is 80398791.

It is an interprime number because it is at equal distance from previous prime (197893067) and next prime (197893093).

It is a super-2 number, since 2×1978930802 = 78323342223772800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 95 ways as a sum of consecutive naturals, for example, 3354091 + ... + 3354149.

It is an arithmetic number, because the mean of its divisors is an integer number (2141100).

Almost surely, 2197893080 is an apocalyptic number.

197893080 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 197893080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (411091200).

197893080 is an abundant number, since it is smaller than the sum of its proper divisors (624289320).

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

197893080 is a wasteful number, since it uses less digits than its factorization.

197893080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 197893080 is about 14067.4475296693. The cubic root of 197893080 is about 582.7427368549.

The spelling of 197893080 in words is "one hundred ninety-seven million, eight hundred ninety-three thousand, eighty".