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401207 = 1512657
BaseRepresentation
bin1100001111100110111
3202101100112
41201330313
5100314312
612333235
73260462
oct1417467
9671315
10401207
11254484
1217421b
13110801
14a62d9
157dd22
hex61f37

401207 has 4 divisors (see below), whose sum is σ = 404016. Its totient is φ = 398400.

The previous prime is 401201. The next prime is 401209. The reversal of 401207 is 702104.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-401207 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 401191 and 401200.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 401207.

It is not an unprimeable number, because it can be changed into a prime (401201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1178 + ... + 1479.

It is an arithmetic number, because the mean of its divisors is an integer number (101004).

2401207 is an apocalyptic number.

401207 is a deficient number, since it is larger than the sum of its proper divisors (2809).

401207 is a wasteful number, since it uses less digits than its factorization.

401207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2808.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 401207 is about 633.4090305640. The cubic root of 401207 is about 73.7546659884.

The spelling of 401207 in words is "four hundred one thousand, two hundred seven", and thus it is an iban number.

Divisors: 1 151 2657 401207