Search a number
-
+
380745837956 = 221171121877669
BaseRepresentation
bin1011000101001100011…
…10000110110110000100
31100101202211110121002002
411202212032012312010
522214231413303311
6450525012404432
736336144136541
oct5424616066604
91311684417062
10380745837956
11137523110490
126195b016718
1329b9a631953
14145dcd87bc8
159d863a693b
hex58a6386d84

380745837956 has 24 divisors (see below), whose sum is σ = 737116148160. Its totient is φ = 170628735200.

The previous prime is 380745837943. The next prime is 380745837959. The reversal of 380745837956 is 659738547083.

It is a super-2 number, since 2×3807458379562 (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 380745837892 and 380745837901.

It is not an unprimeable number, because it can be changed into a prime (380745837959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60935711 + ... + 60941958.

It is an arithmetic number, because the mean of its divisors is an integer number (30713172840).

Almost surely, 2380745837956 is an apocalyptic number.

It is an amenable number.

380745837956 is a deficient number, since it is larger than the sum of its proper divisors (356370310204).

380745837956 is a wasteful number, since it uses less digits than its factorization.

380745837956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121877755 (or 121877753 counting only the distinct ones).

The product of its (nonzero) digits is 152409600, while the sum is 65.

The spelling of 380745837956 in words is "three hundred eighty billion, seven hundred forty-five million, eight hundred thirty-seven thousand, nine hundred fifty-six".

Divisors: 1 2 4 11 22 44 71 142 284 781 1562 3124 121877669 243755338 487510676 1340654359 2681308718 5362617436 8653314499 17306628998 34613257996 95186459489 190372918978 380745837956