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3781393374 = 231189643751
BaseRepresentation
bin1110000101100011…
…0111101111011110
3100202112100200112110
43201120313233132
530221014041444
61423120214450
7162464212323
oct34130675736
910675320473
103781393374
1116705528a0
1289646a426
13483551295
1427c2cab4a
15171e92cb9
hexe1637bde

3781393374 has 32 divisors (see below), whose sum is σ = 8343025920. Its totient is φ = 1133000000.

The previous prime is 3781393339. The next prime is 3781393379. The reversal of 3781393374 is 4733931873.

It is a super-2 number, since 2×37813933742 = 28597871697862207752, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3781393379) 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, 316002 + ... + 327749.

It is an arithmetic number, because the mean of its divisors is an integer number (260719560).

Almost surely, 23781393374 is an apocalyptic number.

3781393374 is an abundant number, since it is smaller than the sum of its proper divisors (4561632546).

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

3781393374 is a wasteful number, since it uses less digits than its factorization.

3781393374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643856.

The product of its digits is 1143072, while the sum is 48.

The square root of 3781393374 is about 61493.0351665943. The cubic root of 3781393374 is about 1557.9396114407.

The spelling of 3781393374 in words is "three billion, seven hundred eighty-one million, three hundred ninety-three thousand, three hundred seventy-four".

Divisors: 1 2 3 6 11 22 33 66 89 178 267 534 979 1958 2937 5874 643751 1287502 1931253 3862506 7081261 14162522 21243783 42487566 57293839 114587678 171881517 343763034 630232229 1260464458 1890696687 3781393374