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148843815808 = 2721123923059
BaseRepresentation
bin1000101010011111001…
…0000110001110000000
3112020012011220021022211
42022213302012032000
54414313004101213
6152213343311504
713516326362602
oct2124762061600
9466164807284
10148843815808
11581404a9926
1224a1b5ab594
1311060b895bc
1472bddc9172
153d1234b53d
hex22a7c86380

148843815808 has 64 divisors (see below), whose sum is σ = 299189664000. Its totient is φ = 73756085760.

The previous prime is 148843815781. The next prime is 148843815823. The reversal of 148843815808 is 808518348841.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

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, 6443383 + ... + 6466441.

It is an arithmetic number, because the mean of its divisors is an integer number (4674838500).

Almost surely, 2148843815808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 148843815808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149594832000).

148843815808 is an abundant number, since it is smaller than the sum of its proper divisors (150345848192).

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

148843815808 is a wasteful number, since it uses less digits than its factorization.

148843815808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23523 (or 23511 counting only the distinct ones).

The product of its (nonzero) digits is 7864320, while the sum is 58.

The spelling of 148843815808 in words is "one hundred forty-eight billion, eight hundred forty-three million, eight hundred fifteen thousand, eight hundred eight".

Divisors: 1 2 4 8 16 32 64 128 211 239 422 478 844 956 1688 1912 3376 3824 6752 7648 13504 15296 23059 27008 30592 46118 50429 92236 100858 184472 201716 368944 403432 737888 806864 1475776 1613728 2951552 3227456 4865449 5511101 6454912 9730898 11022202 19461796 22044404 38923592 44088808 77847184 88177616 155694368 176355232 311388736 352710464 622777472 705420928 1162842311 2325684622 4651369244 9302738488 18605476976 37210953952 74421907904 148843815808