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30486260 = 22571973157
BaseRepresentation
bin111010001001…
…0111011110100
32010100212021202
41310102323310
530301030020
63005232032
7520062140
oct164227364
963325252
1030486260
1116232862
12a262618
13641540c
144098220
152a22e75
hex1d12ef4

30486260 has 96 divisors (see below), whose sum is σ = 78570240. Its totient is φ = 9704448.

The previous prime is 30486251. The next prime is 30486263. The reversal of 30486260 is 6268403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30486263) 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, 194102 + ... + 194258.

It is an arithmetic number, because the mean of its divisors is an integer number (818440).

Almost surely, 230486260 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30486260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39285120).

30486260 is an abundant number, since it is smaller than the sum of its proper divisors (48083980).

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

30486260 is a wasteful number, since it uses less digits than its factorization.

30486260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 30486260 is about 5521.4364073129. The cubic root of 30486260 is about 312.3930642113.

The spelling of 30486260 in words is "thirty million, four hundred eighty-six thousand, two hundred sixty".

Divisors: 1 2 4 5 7 10 14 19 20 28 35 38 70 73 76 95 133 140 146 157 190 266 292 314 365 380 511 532 628 665 730 785 1022 1099 1330 1387 1460 1570 2044 2198 2555 2660 2774 2983 3140 4396 5110 5495 5548 5966 6935 9709 10220 10990 11461 11932 13870 14915 19418 20881 21980 22922 27740 29830 38836 41762 45844 48545 57305 59660 80227 83524 97090 104405 114610 160454 194180 208810 217759 229220 320908 401135 417620 435518 802270 871036 1088795 1524313 1604540 2177590 3048626 4355180 6097252 7621565 15243130 30486260