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133420101 = 344473367
BaseRepresentation
bin1111111001111…
…01010001000101
3100022001102222020
413330331101011
5233123420401
621123353353
73210023613
oct774752105
9308042866
10133420101
1169348551
1238822859
1321845409
1413a106b3
15baa6d36
hex7f3d445

133420101 has 4 divisors (see below), whose sum is σ = 177893472. Its totient is φ = 88946732.

The previous prime is 133420087. The next prime is 133420121. The reversal of 133420101 is 101024331.

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 133420101 - 25 = 133420069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133420121) 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, 22236681 + ... + 22236686.

It is an arithmetic number, because the mean of its divisors is an integer number (44473368).

Almost surely, 2133420101 is an apocalyptic number.

It is an amenable number.

133420101 is a deficient number, since it is larger than the sum of its proper divisors (44473371).

133420101 is an equidigital number, since it uses as much as digits as its factorization.

133420101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44473370.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 133420101 is about 11550.7619229209. The cubic root of 133420101 is about 510.9837490348.

Adding to 133420101 its reverse (101024331), we get a palindrome (234444432).

The spelling of 133420101 in words is "one hundred thirty-three million, four hundred twenty thousand, one hundred one".

Divisors: 1 3 44473367 133420101