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1255000198 = 2192310871321
BaseRepresentation
bin100101011001101…
…1100100010000110
310020110111121121211
41022303130202012
510032240001243
6324311002034
743046216464
oct11263344206
93213447554
101255000198
11594462251
122b036931a
1317001078a
14bc969834
15752a1d9d
hex4acdc886

1255000198 has 32 divisors (see below), whose sum is σ = 2071203840. Its totient is φ = 567673920.

The previous prime is 1255000183. The next prime is 1255000213. The reversal of 1255000198 is 8910005521.

It is an interprime number because it is at equal distance from previous prime (1255000183) and next prime (1255000213).

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, 949378 + ... + 950698.

It is an arithmetic number, because the mean of its divisors is an integer number (64725120).

It is a vampire number, since it can be written as 2500150198 (with its own digits).

Almost surely, 21255000198 is an apocalyptic number.

1255000198 is a deficient number, since it is larger than the sum of its proper divisors (816203642).

1255000198 is a wasteful number, since it uses less digits than its factorization.

1255000198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2452.

The product of its (nonzero) digits is 3600, while the sum is 31.

The square root of 1255000198 is about 35425.9819623959. The cubic root of 1255000198 is about 1078.6517807265.

The spelling of 1255000198 in words is "one billion, two hundred fifty-five million, one hundred ninety-eight", and thus it is an aban number.

Divisors: 1 2 19 23 38 46 437 874 1087 1321 2174 2642 20653 25001 25099 30383 41306 50002 50198 60766 475019 577277 950038 1154554 1435927 2871854 27282613 33026321 54565226 66052642 627500099 1255000198