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212106148 = 2253026537
BaseRepresentation
bin11001010010001…
…11101110100100
3112210010002221021
430221013232210
5413244344043
633014100524
75153605162
oct1451075644
9483102837
10212106148
11a9801541
125b04a744
1334c356c7
1420254232
151394b3ed
hexca47ba4

212106148 has 6 divisors (see below), whose sum is σ = 371185766. Its totient is φ = 106053072.

The previous prime is 212106133. The next prime is 212106151. The reversal of 212106148 is 841601212.

212106148 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 111344704 + 100761444 = 10552^2 + 10038^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26513265 + ... + 26513272.

Almost surely, 2212106148 is an apocalyptic number.

It is an amenable number.

212106148 is a deficient number, since it is larger than the sum of its proper divisors (159079618).

212106148 is a wasteful number, since it uses less digits than its factorization.

212106148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53026541 (or 53026539 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 212106148 is about 14563.8644596824. The cubic root of 212106148 is about 596.3726967909.

The spelling of 212106148 in words is "two hundred twelve million, one hundred six thousand, one hundred forty-eight".

Divisors: 1 2 4 53026537 106053074 212106148