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20101374 = 2321116743
BaseRepresentation
bin100110010101…
…1100011111110
31101211020220100
41030223203332
520121220444
61554501530
7332600406
oct114534376
941736810
1020101374
111038a507
1268948a6
13421a607
142953806
151b70e69
hex132b8fe

20101374 has 12 divisors (see below), whose sum is σ = 43553016. Its totient is φ = 6700452.

The previous prime is 20101369. The next prime is 20101387. The reversal of 20101374 is 47310102.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1116743 = 20101374 / (2 + 0 + 1 + 0 + 1 + 3 + 7 + 4).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 558354 + ... + 558389.

It is an arithmetic number, because the mean of its divisors is an integer number (3629418).

Almost surely, 220101374 is an apocalyptic number.

20101374 is an abundant number, since it is smaller than the sum of its proper divisors (23451642).

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

20101374 is a wasteful number, since it uses less digits than its factorization.

20101374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116751 (or 1116748 counting only the distinct ones).

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

The square root of 20101374 is about 4483.4555869329. The cubic root of 20101374 is about 271.8996079193.

Adding to 20101374 its reverse (47310102), we get a palindrome (67411476).

The spelling of 20101374 in words is "twenty million, one hundred one thousand, three hundred seventy-four".

Divisors: 1 2 3 6 9 18 1116743 2233486 3350229 6700458 10050687 20101374