Search a number
-
+
407440160421 = 3779997242533
BaseRepresentation
bin1011110110111010101…
…00110111011010100101
31102221200012112200100220
411323131110313122211
523133414140113141
6511101520354553
741302514135550
oct5733524673245
91387605480326
10407440160421
11147881392008
1266b6aa75a59
132c562ba7428
1415a12379697
15a8e9baa766
hex5edd5376a5

407440160421 has 16 divisors (see below), whose sum is σ = 620871517824. Its totient is φ = 232819078464.

The previous prime is 407440160377. The next prime is 407440160461. The reversal of 407440160421 is 124061044704.

It is not a de Polignac number, because 407440160421 - 26 = 407440160357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (407440160461) 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, 1558671 + ... + 1801203.

It is an arithmetic number, because the mean of its divisors is an integer number (38804469864).

Almost surely, 2407440160421 is an apocalyptic number.

It is an amenable number.

407440160421 is a deficient number, since it is larger than the sum of its proper divisors (213431357403).

407440160421 is a wasteful number, since it uses less digits than its factorization.

407440160421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322540.

The product of its (nonzero) digits is 21504, while the sum is 33.

The spelling of 407440160421 in words is "four hundred seven billion, four hundred forty million, one hundred sixty thousand, four hundred twenty-one".

Divisors: 1 3 7 21 79997 239991 242533 559979 727599 1679937 1697731 5093193 19401912401 58205737203 135813386807 407440160421