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98021051680 = 2551932243767
BaseRepresentation
bin101101101001010000…
…0101000110100100000
3100101000020220100111111
41123102200220310200
53101221342123210
6113010311153104
710040024122606
oct1332240506440
9311006810444
1098021051680
1138630367a22
1216bb7075794
1393218263c6
144a5c2c5876
15283a63488a
hex16d2828d20

98021051680 has 48 divisors (see below), whose sum is σ = 243762886080. Its totient is φ = 37144818432.

The previous prime is 98021051669. The next prime is 98021051839. The reversal of 98021051680 is 8615012089.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16118844 + ... + 16124923.

It is an arithmetic number, because the mean of its divisors is an integer number (5078393460).

Almost surely, 298021051680 is an apocalyptic number.

It is an amenable number.

98021051680 is an abundant number, since it is smaller than the sum of its proper divisors (145741834400).

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

98021051680 is a wasteful number, since it uses less digits than its factorization.

98021051680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32243801 (or 32243793 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 40.

The spelling of 98021051680 in words is "ninety-eight billion, twenty-one million, fifty-one thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 19 20 32 38 40 76 80 95 152 160 190 304 380 608 760 1520 3040 32243767 64487534 128975068 161218835 257950136 322437670 515900272 612631573 644875340 1031800544 1225263146 1289750680 2450526292 2579501360 3063157865 4901052584 5159002720 6126315730 9802105168 12252631460 19604210336 24505262920 49010525840 98021051680