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98180020 = 2257436607
BaseRepresentation
bin1011101101000…
…01101110110100
320211202001200001
411312201232310
5200113230040
613424201044
72301342061
oct566415664
9224661601
1098180020
1150469114
1228a69184
13174572b3
14d079c68
15894559a
hex5da1bb4

98180020 has 24 divisors (see below), whose sum is σ = 206486784. Its totient is φ = 39213216.

The previous prime is 98179999. The next prime is 98180023. The reversal of 98180020 is 2008189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98180023) 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, 11557 + ... + 18163.

It is an arithmetic number, because the mean of its divisors is an integer number (8603616).

Almost surely, 298180020 is an apocalyptic number.

It is an amenable number.

98180020 is an abundant number, since it is smaller than the sum of its proper divisors (108306764).

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

98180020 is a wasteful number, since it uses less digits than its factorization.

98180020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7359 (or 7357 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 98180020 is about 9908.5831479581. The cubic root of 98180020 is about 461.3257594975.

The spelling of 98180020 in words is "ninety-eight million, one hundred eighty thousand, twenty".

Divisors: 1 2 4 5 10 20 743 1486 2972 3715 6607 7430 13214 14860 26428 33035 66070 132140 4909001 9818002 19636004 24545005 49090010 98180020