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148920203 = 547272249
BaseRepresentation
bin10001110000001…
…01011110001011
3101101012221010002
420320011132023
5301110421303
622435513215
73455541455
oct1070053613
9341187102
10148920203
1177074a53
1241a5880b
1324b11583
1415ac72d5
15d119788
hex8e0578b

148920203 has 4 divisors (see below), whose sum is σ = 149193000. Its totient is φ = 148647408.

The previous prime is 148920199. The next prime is 148920263. The reversal of 148920203 is 302029841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302029841 = 347870403.

It is a cyclic number.

It is not a de Polignac number, because 148920203 - 22 = 148920199 is a prime.

It is a super-2 number, since 2×1489202032 = 44354453723122418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148920263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135578 + ... + 136671.

It is an arithmetic number, because the mean of its divisors is an integer number (37298250).

Almost surely, 2148920203 is an apocalyptic number.

148920203 is a deficient number, since it is larger than the sum of its proper divisors (272797).

148920203 is an equidigital number, since it uses as much as digits as its factorization.

148920203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272796.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 148920203 is about 12203.2865655118. The cubic root of 148920203 is about 530.0512623966.

The spelling of 148920203 in words is "one hundred forty-eight million, nine hundred twenty thousand, two hundred three".

Divisors: 1 547 272249 148920203