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1355261948 = 221319256873
BaseRepresentation
bin101000011000111…
…1010011111111100
310111110011102212222
41100301322133330
510233421340243
6342251544512
745404352005
oct12061723774
93443142788
101355261948
116360123a7
12319a5b138
13187a16461
14cbdc81ac
157dea9168
hex50c7a7fc

1355261948 has 12 divisors (see below), whose sum is σ = 2373515760. Its totient is φ = 677114592.

The previous prime is 1355261933. The next prime is 1355261989. The reversal of 1355261948 is 8491625531.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1355261899 and 1355261908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123161 + ... + 133712.

It is an arithmetic number, because the mean of its divisors is an integer number (197792980).

Almost surely, 21355261948 is an apocalyptic number.

It is an amenable number.

1355261948 is a deficient number, since it is larger than the sum of its proper divisors (1018253812).

1355261948 is a wasteful number, since it uses less digits than its factorization.

1355261948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258196 (or 258194 counting only the distinct ones).

The product of its digits is 259200, while the sum is 44.

The square root of 1355261948 is about 36813.8825444967. The cubic root of 1355261948 is about 1106.6435274028.

The spelling of 1355261948 in words is "one billion, three hundred fifty-five million, two hundred sixty-one thousand, nine hundred forty-eight".

Divisors: 1 2 4 1319 2638 5276 256873 513746 1027492 338815487 677630974 1355261948