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193031153 = 7117123549
BaseRepresentation
bin10111000000101…
…10101111110001
3111110012222221222
423200112233301
5343403444103
631053154425
74532511020
oct1340265761
9443188858
10193031153
1199a63187
125478ba15
1330cb7323
141b8ca8b7
1511e2e638
hexb816bf1

193031153 has 8 divisors (see below), whose sum is σ = 220804800. Its totient is φ = 165306960.

The previous prime is 193031149. The next prime is 193031177. The reversal of 193031153 is 351130391.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 193031153 - 22 = 193031149 is a prime.

It is a super-2 number, since 2×1930311532 = 74522052057018818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (193031123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3578 + ... + 19971.

It is an arithmetic number, because the mean of its divisors is an integer number (27600600).

Almost surely, 2193031153 is an apocalyptic number.

It is an amenable number.

193031153 is a deficient number, since it is larger than the sum of its proper divisors (27773647).

193031153 is a wasteful number, since it uses less digits than its factorization.

193031153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24727.

The product of its (nonzero) digits is 1215, while the sum is 26.

The square root of 193031153 is about 13893.5651652123. The cubic root of 193031153 is about 577.9307486386.

The spelling of 193031153 in words is "one hundred ninety-three million, thirty-one thousand, one hundred fifty-three".

Divisors: 1 7 1171 8197 23549 164843 27575879 193031153