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30507699040 = 2557132095309
BaseRepresentation
bin11100011010011001…
…101000101101100000
32220202010121200112021
4130122121220231200
5444434432332130
622003125511224
72130003106660
oct343231505540
986663550467
1030507699040
1111a35889915
125ab4b72514
132b52614630
141695a461a0
15bd84b337a
hex71a668b60

30507699040 has 96 divisors (see below), whose sum is σ = 88707044160. Its totient is φ = 9655179264.

The previous prime is 30507698999. The next prime is 30507699041. The reversal of 30507699040 is 4099670503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30507699041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1033095 + ... + 1062214.

It is an arithmetic number, because the mean of its divisors is an integer number (924031710).

Almost surely, 230507699040 is an apocalyptic number.

It is an amenable number.

30507699040 is an abundant number, since it is smaller than the sum of its proper divisors (58199345120).

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

30507699040 is a wasteful number, since it uses less digits than its factorization.

30507699040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2095344 (or 2095336 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 43.

The spelling of 30507699040 in words is "thirty billion, five hundred seven million, six hundred ninety-nine thousand, forty".

Divisors: 1 2 4 5 7 8 10 13 14 16 20 26 28 32 35 40 52 56 65 70 80 91 104 112 130 140 160 182 208 224 260 280 364 416 455 520 560 728 910 1040 1120 1456 1820 2080 2912 3640 7280 14560 2095309 4190618 8381236 10476545 14667163 16762472 20953090 27239017 29334326 33524944 41906180 54478034 58668652 67049888 73335815 83812360 108956068 117337304 136195085 146671630 167624720 190673119 217912136 234674608 272390170 293343260 335249440 381346238 435824272 469349216 544780340 586686520 762692476 871648544 953365595 1089560680 1173373040 1525384952 1906731190 2179121360 2346746080 3050769904 3813462380 4358242720 6101539808 7626924760 15253849520 30507699040