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1214012401 = 7173430343
BaseRepresentation
bin100100001011100…
…0101101111110001
310010121101012221021
41020113011233301
54441241344101
6320244255441
742040635520
oct11027055761
93117335837
101214012401
11573307538
1229a6a1581
1316468c444
14b733a4b7
15718a75a1
hex485c5bf1

1214012401 has 4 divisors (see below), whose sum is σ = 1387442752. Its totient is φ = 1040582052.

The previous prime is 1214012399. The next prime is 1214012417. The reversal of 1214012401 is 1042104121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1214012401 - 21 = 1214012399 is a prime.

It is a super-2 number, since 2×12140124012 = 2947652219563569602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1214012441) 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, 86715165 + ... + 86715178.

It is an arithmetic number, because the mean of its divisors is an integer number (346860688).

Almost surely, 21214012401 is an apocalyptic number.

It is an amenable number.

1214012401 is a deficient number, since it is larger than the sum of its proper divisors (173430351).

1214012401 is an equidigital number, since it uses as much as digits as its factorization.

1214012401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173430350.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1214012401 is about 34842.6807378537. The cubic root of 1214012401 is about 1066.7787949292.

Adding to 1214012401 its reverse (1042104121), we get a palindrome (2256116522).

The spelling of 1214012401 in words is "one billion, two hundred fourteen million, twelve thousand, four hundred one".

Divisors: 1 7 173430343 1214012401