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30937401 = 3211228409
BaseRepresentation
bin111011000000…
…1000100111001
32011012210010200
41312001010321
530404444101
63023032413
7523651335
oct166010471
964183120
1030937401
1116510800
12a43b709
136542871
1441747c5
152ab1986
hex1d81139

30937401 has 18 divisors (see below), whose sum is σ = 49120890. Its totient is φ = 18749280.

The previous prime is 30937397. The next prime is 30937409. The reversal of 30937401 is 10473903.

It can be written as a sum of positive squares in only one way, i.e., 27878400 + 3059001 = 5280^2 + 1749^2 .

It is not a de Polignac number, because 30937401 - 22 = 30937397 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30937409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13116 + ... + 15293.

Almost surely, 230937401 is an apocalyptic number.

It is an amenable number.

30937401 is a deficient number, since it is larger than the sum of its proper divisors (18183489).

30937401 is a wasteful number, since it uses less digits than its factorization.

30937401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28437 (or 28423 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 30937401 is about 5562.1399658764. The cubic root of 30937401 is about 313.9264740554.

The spelling of 30937401 in words is "thirty million, nine hundred thirty-seven thousand, four hundred one".

Divisors: 1 3 9 11 33 99 121 363 1089 28409 85227 255681 312499 937497 2812491 3437489 10312467 30937401