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148742154002197 = 721248879143171
BaseRepresentation
bin100001110100011110111011…
…010000001001111100010101
3201111122121111110022112020001
4201310132323100021330111
5123443442412411032242
61244203111403011301
743221160144163410
oct4164367320117425
9644577443275201
10148742154002197
1143437214263918
1214823286509b31
1364cc42bb6bb52
1428a3231544b77
15122e1d1173eb7
hex8747bb409f15

148742154002197 has 4 divisors (see below), whose sum is σ = 169991033145376. Its totient is φ = 127493274859020.

The previous prime is 148742154002177. The next prime is 148742154002213. The reversal of 148742154002197 is 791200451247841.

148742154002197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 148742154002197 - 247 = 8004665646869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148742154002147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10624439571579 + ... + 10624439571592.

It is an arithmetic number, because the mean of its divisors is an integer number (42497758286344).

Almost surely, 2148742154002197 is an apocalyptic number.

It is an amenable number.

148742154002197 is a deficient number, since it is larger than the sum of its proper divisors (21248879143179).

148742154002197 is an equidigital number, since it uses as much as digits as its factorization.

148742154002197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21248879143178.

The product of its (nonzero) digits is 4515840, while the sum is 55.

The spelling of 148742154002197 in words is "one hundred forty-eight trillion, seven hundred forty-two billion, one hundred fifty-four million, two thousand, one hundred ninety-seven".

Divisors: 1 7 21248879143171 148742154002197