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121374 = 23211613
BaseRepresentation
bin11101101000011110
320011111100
4131220132
512340444
62333530
71013601
oct355036
9204440
10121374
1183210
125a2a6
1343326
1432338
1525e69
hex1da1e

121374 has 24 divisors (see below), whose sum is σ = 287352. Its totient is φ = 36720.

The previous prime is 121369. The next prime is 121379. The reversal of 121374 is 473121.

121374 = T81 + T82 + ... + T107.

It is an interprime number because it is at equal distance from previous prime (121369) and next prime (121379).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a d-powerful number, because it can be written as 1 + 29 + 37 + 1 + 76 + 45 .

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121379) by changing a digit.

121374 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109 + ... + 504.

It is an arithmetic number, because the mean of its divisors is an integer number (11973).

2121374 is an apocalyptic number.

121374 is an abundant number, since it is smaller than the sum of its proper divisors (165978).

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

121374 is a wasteful number, since it uses less digits than its factorization.

121374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632 (or 629 counting only the distinct ones).

The product of its digits is 168, while the sum is 18.

The square root of 121374 is about 348.3877150532. The cubic root of 121374 is about 49.5117817073.

Adding to 121374 its reverse (473121), we get a palindrome (594495).

It can be divided in two parts, 121 and 374, that multiplied together give a palindrome (45254).

The spelling of 121374 in words is "one hundred twenty-one thousand, three hundred seventy-four", and thus it is an iban number.

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 613 1226 1839 3678 5517 6743 11034 13486 20229 40458 60687 121374