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30420101 = 295871787
BaseRepresentation
bin111010000001…
…0110010000101
32010020111112102
41310002302011
530241420401
63004001445
7516365225
oct164026205
963214472
1030420101
1116198088
12a230285
1363c127a
14407c085
152a0d56b
hex1d02c85

30420101 has 8 divisors (see below), whose sum is σ = 31540320. Its totient is φ = 29304688.

The previous prime is 30420067. The next prime is 30420107. The reversal of 30420101 is 10102403.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 30420101 - 214 = 30403717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30420107) 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, 16130 + ... + 17916.

It is an arithmetic number, because the mean of its divisors is an integer number (3942540).

Almost surely, 230420101 is an apocalyptic number.

It is an amenable number.

30420101 is a deficient number, since it is larger than the sum of its proper divisors (1120219).

30420101 is a wasteful number, since it uses less digits than its factorization.

30420101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2403.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 30420101 is about 5515.4420493737. The cubic root of 30420101 is about 312.1669231976.

Adding to 30420101 its reverse (10102403), we get a palindrome (40522504).

The spelling of 30420101 in words is "thirty million, four hundred twenty thousand, one hundred one".

Divisors: 1 29 587 1787 17023 51823 1048969 30420101