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155015234460 = 22335169432
BaseRepresentation
bin1001000001011110100…
…0001100001110011100
3112211010021111211012000
42100113220030032130
510014432400000320
6155114002242300
714125264516032
oct2202750141634
9484107454160
10155015234460
115a818071019
1226062356390
1311805613308
14770789a552
154074044c90
hex2417a0c39c

155015234460 has 72 divisors (see below), whose sum is σ = 482298084240. Its totient is φ = 41334956064.

The previous prime is 155015234453. The next prime is 155015234461. The reversal of 155015234460 is 64432510551.

155015234460 is a `hidden beast` number, since 1 + 5 + 501 + 52 + 3 + 44 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155015234461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9140749 + ... + 9157691.

Almost surely, 2155015234460 is an apocalyptic number.

155015234460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155015234460 is an abundant number, since it is smaller than the sum of its proper divisors (327282849780).

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

155015234460 is an frugal number, since it uses more digits than its factorization.

155015234460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33904 (or 16953 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 155015234460 in words is "one hundred fifty-five billion, fifteen million, two hundred thirty-four thousand, four hundred sixty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 90 108 135 180 270 540 16943 33886 50829 67772 84715 101658 152487 169430 203316 254145 304974 338860 457461 508290 609948 762435 914922 1016580 1524870 1829844 2287305 3049740 4574610 9149220 287065249 574130498 861195747 1148260996 1435326245 1722391494 2583587241 2870652490 3444782988 4305978735 5167174482 5741304980 7750761723 8611957470 10334348964 12917936205 15501523446 17223914940 25835872410 31003046892 38753808615 51671744820 77507617230 155015234460