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145137850 = 252111353383
BaseRepresentation
bin10001010011010…
…10000010111010
3101010002202200221
420221222002322
5244123402400
622222450254
73411436264
oct1051520272
9333082627
10145137850
1174a21240
124073398a
13240b8ab0
14153c0b34
15cb1dc1a
hex8a6a0ba

145137850 has 96 divisors (see below), whose sum is σ = 323979264. Its totient is φ = 47673600.

The previous prime is 145137847. The next prime is 145137851. The reversal of 145137850 is 58731541.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (145137851) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 378759 + ... + 379141.

It is an arithmetic number, because the mean of its divisors is an integer number (3374784).

Almost surely, 2145137850 is an apocalyptic number.

145137850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145137850 is an abundant number, since it is smaller than the sum of its proper divisors (178841414).

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

145137850 is a wasteful number, since it uses less digits than its factorization.

145137850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472 (or 467 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 145137850 is about 12047.3171287221. The cubic root of 145137850 is about 525.5252189069.

The spelling of 145137850 in words is "one hundred forty-five million, one hundred thirty-seven thousand, eight hundred fifty".

Divisors: 1 2 5 10 11 13 22 25 26 50 53 55 65 106 110 130 143 265 275 286 325 383 530 550 583 650 689 715 766 1166 1325 1378 1430 1915 2650 2915 3445 3575 3830 4213 4979 5830 6890 7150 7579 8426 9575 9958 14575 15158 17225 19150 20299 21065 24895 29150 34450 37895 40598 42130 49790 54769 75790 101495 105325 109538 124475 189475 202990 210650 223289 248950 263887 273845 378950 446578 507475 527774 547690 1014950 1116445 1319435 1369225 2232890 2638870 2738450 2902757 5582225 5805514 6597175 11164450 13194350 14513785 29027570 72568925 145137850