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155500002930 = 2355987853109
BaseRepresentation
bin1001000011010010000…
…1011011111001110010
3112212101001200121111210
42100310201123321302
510021431000043210
6155234040420550
714143302134136
oct2206441337162
9485331617453
10155500002930
115aa46774818
1226178777756
1311881b9456c
1477520093c6
1540a189ee20
hex243485be72

155500002930 has 32 divisors (see below), whose sum is σ = 379525435200. Its totient is φ = 40763842112.

The previous prime is 155500002929. The next prime is 155500002941. The reversal of 155500002930 is 39200005551.

It is a super-2 number, since 2×1555000029302 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43924785 + ... + 43928324.

It is an arithmetic number, because the mean of its divisors is an integer number (11860169850).

Almost surely, 2155500002930 is an apocalyptic number.

155500002930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155500002930 is an abundant number, since it is smaller than the sum of its proper divisors (224025432270).

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

155500002930 is a wasteful number, since it uses less digits than its factorization.

155500002930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87853178.

The product of its (nonzero) digits is 6750, while the sum is 30.

The spelling of 155500002930 in words is "one hundred fifty-five billion, five hundred million, two thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 59 118 177 295 354 590 885 1770 87853109 175706218 263559327 439265545 527118654 878531090 1317796635 2635593270 5183333431 10366666862 15550000293 25916667155 31100000586 51833334310 77750001465 155500002930