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400221483 = 3389342949
BaseRepresentation
bin10111110110101…
…110010100101011
31000220002100122220
4113312232110223
51304424041413
6103414045123
712626553324
oct2766562453
91026070586
10400221483
11195a07362
12b20497a3
1364bbb35c
143b22144b
1525209223
hex17dae52b

400221483 has 8 divisors (see below), whose sum is σ = 535002000. Its totient is φ = 266127648.

The previous prime is 400221473. The next prime is 400221509. The reversal of 400221483 is 384122004.

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

It is not a de Polignac number, because 400221483 - 210 = 400220459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (400221473) 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, 170308 + ... + 172641.

It is an arithmetic number, because the mean of its divisors is an integer number (66875250).

Almost surely, 2400221483 is an apocalyptic number.

400221483 is a deficient number, since it is larger than the sum of its proper divisors (134780517).

400221483 is a wasteful number, since it uses less digits than its factorization.

400221483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343341.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 400221483 is about 20005.5363087321. The cubic root of 400221483 is about 736.9422663607.

Adding to 400221483 its reverse (384122004), we get a palindrome (784343487).

The spelling of 400221483 in words is "four hundred million, two hundred twenty-one thousand, four hundred eighty-three".

Divisors: 1 3 389 1167 342949 1028847 133407161 400221483