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30877007 = 724631361
BaseRepresentation
bin111010111001…
…0010101001111
32011002201021212
41311302111033
530401031012
63021445035
7523310300
oct165622517
964081255
1030877007
111647a397
12a41077b
136521225
14415a7a7
152a9db22
hex1d7254f

30877007 has 12 divisors (see below), whose sum is σ = 36022176. Its totient is φ = 26389440.

The previous prime is 30877003. The next prime is 30877009. The reversal of 30877007 is 70077803.

It is not a de Polignac number, because 30877007 - 22 = 30877003 is a prime.

It is a super-2 number, since 2×308770072 = 1906779122556098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30877003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22007 + ... + 23367.

It is an arithmetic number, because the mean of its divisors is an integer number (3001848).

Almost surely, 230877007 is an apocalyptic number.

30877007 is a deficient number, since it is larger than the sum of its proper divisors (5145169).

30877007 is a wasteful number, since it uses less digits than its factorization.

30877007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838 (or 1831 counting only the distinct ones).

The product of its (nonzero) digits is 8232, while the sum is 32.

The square root of 30877007 is about 5556.7082881865. The cubic root of 30877007 is about 313.7220653108.

The spelling of 30877007 in words is "thirty million, eight hundred seventy-seven thousand, seven".

Divisors: 1 7 49 463 1361 3241 9527 22687 66689 630143 4411001 30877007