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197933141 = 75928123
BaseRepresentation
bin10111100110000…
…11100001010101
3111210110001020002
423303003201111
5401132330031
631350221045
74622255360
oct1363034125
9453401202
10197933141
11a180110a
1256354785
1332012603
141c4050d7
151259bccb
hexbcc3855

197933141 has 12 divisors (see below), whose sum is σ = 230136672. Its totient is φ = 166760904.

The previous prime is 197933137. The next prime is 197933191. The reversal of 197933141 is 141339791.

197933141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 197933141 - 22 = 197933137 is a prime.

It is a super-2 number, since 2×1979331412 = 78355056612251762, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 197933095 and 197933104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197933191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20306 + ... + 28428.

It is an arithmetic number, because the mean of its divisors is an integer number (19178056).

Almost surely, 2197933141 is an apocalyptic number.

197933141 is the 8123-rd octagonal number.

It is an amenable number.

197933141 is a deficient number, since it is larger than the sum of its proper divisors (32203531).

197933141 is an frugal number, since it uses more digits than its factorization.

197933141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8248 (or 8189 counting only the distinct ones).

The product of its digits is 20412, while the sum is 38.

The square root of 197933141 is about 14068.8713477663. The cubic root of 197933141 is about 582.7820572152.

The spelling of 197933141 in words is "one hundred ninety-seven million, nine hundred thirty-three thousand, one hundred forty-one".

Divisors: 1 7 59 413 3481 8123 24367 56861 479257 3354799 28276163 197933141