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4900172148 = 2232136115893
BaseRepresentation
bin1001001000001001…
…01011000101110100
3110122111112112111100
410210010223011310
540013421002043
62130123410100
7232300530114
oct44404530564
913574475440
104900172148
112095023953
12b49083930
13601278561
14346b17044
151da2d7cd3
hex12412b174

4900172148 has 18 divisors (see below), whose sum is σ = 12386546354. Its totient is φ = 1633390704.

The previous prime is 4900172129. The next prime is 4900172153. The reversal of 4900172148 is 8412710094.

It can be written as a sum of positive squares in only one way, i.e., 3729300624 + 1170871524 = 61068^2 + 34218^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 136115893 = 4900172148 / (4 + 9 + 0 + 0 + 1 + 7 + 2 + 1 + 4 + 8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68057911 + ... + 68057982.

Almost surely, 24900172148 is an apocalyptic number.

It is an amenable number.

4900172148 is an abundant number, since it is smaller than the sum of its proper divisors (7486374206).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4900172148 is a wasteful number, since it uses less digits than its factorization.

4900172148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136115903 (or 136115898 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 4900172148 is about 70001.2296177717. The cubic root of 4900172148 is about 1698.5191427061.

The spelling of 4900172148 in words is "four billion, nine hundred million, one hundred seventy-two thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 136115893 272231786 408347679 544463572 816695358 1225043037 1633390716 2450086074 4900172148