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6461388201 = 32299405223
BaseRepresentation
bin1100000010010000…
…01111010110101001
3121200022020112022010
412001020033112221
5101213103410301
62545053550133
7316055615322
oct60110172651
917608215263
106461388201
112816315654
121303aa5349
137bc852138
144541d3449
1527c3c55d6
hex18120f5a9

6461388201 has 8 divisors (see below), whose sum is σ = 8652806080. Its totient is φ = 4288781232.

The previous prime is 6461388161. The next prime is 6461388209. The reversal of 6461388201 is 1028831646.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6461388201 - 211 = 6461386153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6461388201.

It is not an unprimeable number, because it can be changed into a prime (6461388209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4701925 + ... + 4703298.

It is an arithmetic number, because the mean of its divisors is an integer number (1081600760).

Almost surely, 26461388201 is an apocalyptic number.

It is an amenable number.

6461388201 is a deficient number, since it is larger than the sum of its proper divisors (2191417879).

6461388201 is a wasteful number, since it uses less digits than its factorization.

6461388201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9405455.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 6461388201 is about 80382.7605957894. The cubic root of 6461388201 is about 1862.5528787954.

The spelling of 6461388201 in words is "six billion, four hundred sixty-one million, three hundred eighty-eight thousand, two hundred one".

Divisors: 1 3 229 687 9405223 28215669 2153796067 6461388201