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49418530 = 2574167257
BaseRepresentation
bin1011110010000…
…1000100100010
310102222201110221
42330201010202
5100122343110
64523113254
71140023230
oct274410442
9112881427
1049418530
1125993967
121467282a
13a313845
1467c5950
1545127da
hex2f21122

49418530 has 64 divisors (see below), whose sum is σ = 106106112. Its totient is φ = 16220160.

The previous prime is 49418519. The next prime is 49418533. The reversal of 49418530 is 3581494.

49418530 is nontrivially palindromic in base 6.

It is a super-2 number, since 2×494185302 = 4884382214721800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49418533) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 192162 + ... + 192418.

It is an arithmetic number, because the mean of its divisors is an integer number (1657908).

Almost surely, 249418530 is an apocalyptic number.

49418530 is the 5740-th pentagonal number.

49418530 is an abundant number, since it is smaller than the sum of its proper divisors (56687582).

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

49418530 is a wasteful number, since it uses less digits than its factorization.

49418530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 49418530 is about 7029.8314346789. The cubic root of 49418530 is about 366.9694752953.

The spelling of 49418530 in words is "forty-nine million, four hundred eighteen thousand, five hundred thirty".

Divisors: 1 2 5 7 10 14 35 41 67 70 82 134 205 257 287 335 410 469 514 574 670 938 1285 1435 1799 2345 2570 2747 2870 3598 4690 5494 8995 10537 13735 17219 17990 19229 21074 27470 34438 38458 52685 73759 86095 96145 105370 120533 147518 172190 192290 241066 368795 602665 705979 737590 1205330 1411958 3529895 4941853 7059790 9883706 24709265 49418530