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169421380470 = 23255851321733
BaseRepresentation
bin1001110111001001001…
…1010001101101110110
3121012022021012212100100
42131302103101231312
510233433333133340
6205455304054530
715145263654516
oct2356223215566
9535267185310
10169421380470
116593aa52811
1228a02a64446
1312c90106074
1482b2c97846
154618b52830
hex27724d1b76

169421380470 has 48 divisors (see below), whose sum is σ = 440572244112. Its totient is φ = 45171172800.

The previous prime is 169421380463. The next prime is 169421380477. The reversal of 169421380470 is 74083124961.

169421380470 is a `hidden beast` number, since 1 + 6 + 9 + 42 + 138 + 0 + 470 = 666.

169421380470 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (169421380463) and next prime (169421380477).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169421380477) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 365724 + ... + 687456.

It is an arithmetic number, because the mean of its divisors is an integer number (9178588419).

Almost surely, 2169421380470 is an apocalyptic number.

169421380470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

169421380470 is an abundant number, since it is smaller than the sum of its proper divisors (271150863642).

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

169421380470 is a wasteful number, since it uses less digits than its factorization.

169421380470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327597 (or 327594 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 169421380470 in words is "one hundred sixty-nine billion, four hundred twenty-one million, three hundred eighty thousand, four hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 5851 11702 17553 29255 35106 52659 58510 87765 105318 175530 263295 321733 526590 643466 965199 1608665 1930398 2895597 3217330 4825995 5791194 9651990 14477985 28955970 1882459783 3764919566 5647379349 9412298915 11294758698 16942138047 18824597830 28236896745 33884276094 56473793490 84710690235 169421380470