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275138941 = 7118343051
BaseRepresentation
bin10000011001100…
…100100101111101
3201011201111200011
4100121210211331
51030413421231
643145103221
76550433230
oct2031444575
9634644604
10275138941
11131343a60
1278187b11
1345004c0c
1428781417
151924c9b1
hex1066497d

275138941 has 16 divisors (see below), whose sum is σ = 347171328. Its totient is φ = 211806000.

The previous prime is 275138939. The next prime is 275138957. The reversal of 275138941 is 149831572.

It is not a de Polignac number, because 275138941 - 21 = 275138939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 275138894 and 275138903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275138641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15135 + ... + 27916.

It is an arithmetic number, because the mean of its divisors is an integer number (21698208).

Almost surely, 2275138941 is an apocalyptic number.

It is an amenable number.

275138941 is a deficient number, since it is larger than the sum of its proper divisors (72032387).

275138941 is a wasteful number, since it uses less digits than its factorization.

275138941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43152.

The product of its digits is 60480, while the sum is 40.

The square root of 275138941 is about 16587.3126515418. The cubic root of 275138941 is about 650.4052234569.

The spelling of 275138941 in words is "two hundred seventy-five million, one hundred thirty-eight thousand, nine hundred forty-one".

Divisors: 1 7 11 77 83 581 913 6391 43051 301357 473561 3314927 3573233 25012631 39305563 275138941