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197214892 = 227174091013
BaseRepresentation
bin10111100000101…
…00001010101100
3111202002112222021
423300110022230
5400441334032
631322555524
74613204350
oct1360241254
9452075867
10197214892
11a1360516
1256068ba4
1331b20704
141c299460
15124a9097
hexbc142ac

197214892 has 48 divisors (see below), whose sum is σ = 419065920. Its totient is φ = 79276032.

The previous prime is 197214887. The next prime is 197214917. The reversal of 197214892 is 298412791.

It is a happy 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, 194178 + ... + 195190.

It is an arithmetic number, because the mean of its divisors is an integer number (8730540).

Almost surely, 2197214892 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197214892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209532960).

197214892 is an abundant number, since it is smaller than the sum of its proper divisors (221851028).

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

197214892 is a wasteful number, since it uses less digits than its factorization.

197214892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450 (or 1448 counting only the distinct ones).

The product of its digits is 72576, while the sum is 43.

The square root of 197214892 is about 14043.3219716704. The cubic root of 197214892 is about 582.0762802362.

The spelling of 197214892 in words is "one hundred ninety-seven million, two hundred fourteen thousand, eight hundred ninety-two".

Divisors: 1 2 4 7 14 17 28 34 68 119 238 409 476 818 1013 1636 2026 2863 4052 5726 6953 7091 11452 13906 14182 17221 27812 28364 34442 48671 68884 97342 120547 194684 241094 414317 482188 828634 1657268 2900219 5800438 7043389 11600876 14086778 28173556 49303723 98607446 197214892