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49970690 = 25721173127
BaseRepresentation
bin1011111010011…
…1111000000010
310111000202220022
42332213320002
5100243030230
64543013442
71144513100
oct276477002
9114022808
1049970690
11262307a0
121489a282
13a477c73
1468cac70
1545c11e5
hex2fa7e02

49970690 has 96 divisors (see below), whose sum is σ = 116619264. Its totient is φ = 15240960.

The previous prime is 49970689. The next prime is 49970707. The reversal of 49970690 is 9607994.

It is a super-2 number, since 2×499706902 = 4994139718152200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 393407 + ... + 393533.

It is an arithmetic number, because the mean of its divisors is an integer number (1214784).

Almost surely, 249970690 is an apocalyptic number.

49970690 is an abundant number, since it is smaller than the sum of its proper divisors (66648574).

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

49970690 is a wasteful number, since it uses less digits than its factorization.

49970690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 49970690 is about 7068.9949780715. The cubic root of 49970690 is about 368.3311498179.

The spelling of 49970690 in words is "forty-nine million, nine hundred seventy thousand, six hundred ninety".

Divisors: 1 2 5 7 10 11 14 22 35 49 55 70 73 77 98 110 127 146 154 245 254 365 385 490 511 539 635 730 770 803 889 1022 1078 1270 1397 1606 1778 2555 2695 2794 3577 4015 4445 5110 5390 5621 6223 6985 7154 8030 8890 9271 9779 11242 12446 13970 17885 18542 19558 28105 31115 35770 39347 46355 48895 56210 62230 64897 68453 78694 92710 97790 101981 129794 136906 196735 203962 324485 342265 393470 454279 509905 648970 684530 713867 908558 1019810 1427734 2271395 3569335 4542790 4997069 7138670 9994138 24985345 49970690