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212965148 = 221119269947
BaseRepresentation
bin11001011000110…
…01011100011100
3112211201202021002
430230121130130
5414004341043
633044325432
75164113434
oct1454313434
9484652232
10212965148
11aa238960
125b3a3878
13351766a6
14203d92c4
1513a6abb8
hexcb1971c

212965148 has 48 divisors (see below), whose sum is σ = 430012800. Its totient is φ = 91270080.

The previous prime is 212965127. The next prime is 212965153. The reversal of 212965148 is 841569212.

212965148 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224411 + ... + 225357.

It is an arithmetic number, because the mean of its divisors is an integer number (8958600).

Almost surely, 2212965148 is an apocalyptic number.

It is an amenable number.

212965148 is an abundant number, since it is smaller than the sum of its proper divisors (217047652).

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

212965148 is a wasteful number, since it uses less digits than its factorization.

212965148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1250 (or 1248 counting only the distinct ones).

The product of its digits is 34560, while the sum is 38.

The square root of 212965148 is about 14593.3254606344. The cubic root of 212965148 is about 597.1766875342.

The spelling of 212965148 in words is "two hundred twelve million, nine hundred sixty-five thousand, one hundred forty-eight".

Divisors: 1 2 4 11 19 22 38 44 76 209 269 418 538 836 947 1076 1894 2959 3788 5111 5918 10222 10417 11836 17993 20444 20834 35986 41668 56221 71972 112442 197923 224884 254743 395846 509486 791692 1018972 2802173 4840117 5604346 9680234 11208692 19360468 53241287 106482574 212965148