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193332972 = 223722310321
BaseRepresentation
bin10111000011000…
…00011011101100
3111110210022222110
423201200123230
5343443123342
631103444020
74535205660
oct1341403354
9443708873
10193332972
119a149a18
12548b6610
1331091811
141b9688a0
1511e8dc9c
hexb8606ec

193332972 has 48 divisors (see below), whose sum is σ = 517916672. Its totient is φ = 54984960.

The previous prime is 193332967. The next prime is 193332977. The reversal of 193332972 is 279233391.

It is an interprime number because it is at equal distance from previous prime (193332967) and next prime (193332977).

It is a self number, because there is not a number n which added to its sum of digits gives 193332972.

It is not an unprimeable number, because it can be changed into a prime (193332977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13572 + ... + 23892.

Almost surely, 2193332972 is an apocalyptic number.

193332972 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 193332972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258958336).

193332972 is an abundant number, since it is smaller than the sum of its proper divisors (324583700).

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

193332972 is a wasteful number, since it uses less digits than its factorization.

193332972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10558 (or 10556 counting only the distinct ones).

The product of its digits is 61236, while the sum is 39.

The square root of 193332972 is about 13904.4227496146. The cubic root of 193332972 is about 578.2318047893.

The spelling of 193332972 in words is "one hundred ninety-three million, three hundred thirty-two thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 223 446 669 892 1338 1561 2676 3122 4683 6244 9366 10321 18732 20642 30963 41284 61926 72247 123852 144494 216741 288988 433482 866964 2301583 4603166 6904749 9206332 13809498 16111081 27618996 32222162 48333243 64444324 96666486 193332972