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98148649 = 99072
BaseRepresentation
bin1011101100110…
…10000100101001
320211200110122011
411312122010221
5200111224044
613423355521
72301151444
oct566320451
9224613564
1098148649
1150447595
1228a52ba1
1317445c31
14d06c65b
15893b134
hex5d9a129

98148649 has 3 divisors (see below), whose sum is σ = 98158557. Its totient is φ = 98138742.

The previous prime is 98148647. The next prime is 98148691. The reversal of 98148649 is 94684189.

The square root of 98148649 is 9907.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 98148649 - 21 = 98148647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98148647) by changing a digit.

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 2 ways as a sum of consecutive naturals, for example, 4954 + ... + 14860.

It is an arithmetic number, because the mean of its divisors is an integer number (32719519).

Almost surely, 298148649 is an apocalyptic number.

98148649 is the 9907-th square number.

98148649 is the 4954-th centered octagonal number.

It is an amenable number.

98148649 is a deficient number, since it is larger than the sum of its proper divisors (9908).

98148649 is an frugal number, since it uses more digits than its factorization.

98148649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19814 (or 9907 counting only the distinct ones).

The product of its digits is 497664, while the sum is 49.

The cubic root of 98148649 is about 461.2766191799.

Multiplying 98148649 by its sum of digits (49), we get a square (4809283801 = 693492).

The spelling of 98148649 in words is "ninety-eight million, one hundred forty-eight thousand, six hundred forty-nine".

Divisors: 1 9907 98148649